QUESTION BANK ITEMS H.2A.1 Identify, construct, extend, and analyze linear patterns and functional relationships that are expressed contextually, numerically, algebraically, graphically, in tables, or using geometric figures. Unit: Linear Equations and Inequalities Target: ANSWER QUESTION LEVEL OF DIFFICULTY Match the graph, equation and table. 1 QuickT ime ™an d a deco mpre ssor ar e need ed to see this pictur e. y 2x 7 y 2x 8 Qu i ck Ti me ™a nd a de co mp re ss or a re ne ed ed to s ee th i s pi c tu re. Graph 3x 4 y 24 . 3 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 QUESTION Which graph represents a linear equation? A. B. ANSWER LEVEL OF DIFFICULTY A 1 A 2 C. Which table represents a linear equation? A. x y -1 5 0 3 1 1 2 -1 B. x y -1 2 0 3 1 6 2 11 C. x y 0 1 1 2 2 4 The following table represents a linear relationship. Fill in the missing values. x y -2 16 -1 12 0 ? ? -8 5 ? NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.2 Given a rule, a context, two points, a table of values, a graph, or a linear equation in either slope intercept or standard form, identify the slope, determine the x and/or y intercept(s), and interpret the meaning of each. Unit: Linear Equations and Inequalities Target: QUESTION ANSWER LEVEL OF DIFFICULTY Slope = 1 2 Slope = -2 y-intercept = 5 2 Slope = -2 y-intercept = 3 (-7/4, 0) 1 x: (-14, 0) 2 Identify the slope given 2 points (2, 4) and (8, 10) Given the equation 4 x 2y 10 , identify the slope and y-intercept. Given the equation y 2x 3, find the slope and yintercept. Given the equation y 4 x 7 , find the x-intercept. Find the x and y intercepts from 2x 4 y 28 . 1 y: (0, 7) Find the slope and the y-intercept x y -1 -3 0 1 1 5 2 9 NCSD Math Renewal, Algebra Assessments – Linear Equations Slope = 4 y-intercept = 1 2 updated 1/10/2010 QUESTION Find the slope and the y-intercept. ANSWER LEVEL OF DIFFICULTY y 23 x 3 1 In the year 1950, there were 2000 record players in the city of Milwaukie. In the year 1975, there were 1500 record players. In the year 2000, there were 1000 record players. a. Does this data represent a linear relationship? b. If so, what is the rate of change? c. If this trend continues, in what year will there be zero record players? NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.3 Determine the equation of a line given any of the following information: two points on the line, its slope and one point on the line, or its graph. Also, determine an equation of a new line parallel or perpendicular to a given line, through a given point. Unit: Linear Equations and Inequalities Target: QUESTION ANSWER LEVEL OF DIFFICULTY y 7 x7 3 y 1 x3 1/2 y 3x 17 2 y 3x 7 1 y 13 x 5 2 y 3x 1 2 y 2x 4 2 y 23 x 3 2 Write an equation for the line given points (-4, 0), (3, 4) 4 Write an equation for the line given points (0, 3), (2, 4) What is the equation of the line with a slope of -3 that passes through the point (5, 2)? Find the line parallel to the equation y 3x 5 with a y-intercept of 7. Find the line perpendicular to the equation y 3x 5 . Find the line that is parallel to the equation y 3x 5 that passes through the point (-2, -5). Find the line perpendicular to the equation y 12 x 4 . Write the equation of the line shown in the following graph. 2 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.4 Fluently convert among representations of linear relationships given in the form of a graph of a line, a table of values, or an equation of a line in slope-intercept and standard form. Unit: Linear Equations and Inequalities Target: QUESTION Plot the points (5, -4), (0, 1) on a coordinate graph. Find the slope and y-intercept. Then, write an equation for the line. ANSWER LEVEL OF DIFFICULTY Slope = -1 y-intercept = 1 1 y x 1 Plot the points (-3, 5), (3, 3) on a coordinate graph. Find the slope and y-intercept. Then, write an equation for the line. Slope = -1/3 y-intercept = 4 2 y 13 x 4 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 QUESTION ANSWER LEVEL OF DIFFICULTY Write the equation 5y 2x 10 in slope-intercept form. y 25 x 2 2 Put the following equation into slope-intercept form. Then find the slope and the y-intercept. y 5x 8 slope = 5 y-intercept = 8 1 yx3 slope = 1 y-intercept = 3 1 5x y 8 Put the following equation into slope-intercept form. Then find the slope and the y-intercept. x y 3 Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. QuickTime™ and a decompressor are needed to see this picture. NCSD Math Renewal, Algebra Assessments – Linear Equations Slope = 2 y-intercept = 6 y 2x 6 1 Slope = -2 y-intercept = 6 y 2x 6 1 Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. QuickTime™ and a decompressor are needed to see this picture. 1 Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. QuickTime™ and a decompressor are needed to see this picture. Slope = 3 y-intercept = 6 y 3x 6 updated 1/10/2010 QUESTION ANSWER LEVEL OF DIFFICULTY Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. Slope = -2 y-intercept = -6 y 2x 6 2 Slope = 1/5 y-intercept = 2 y 15 x 2 3 Slope = 2/5 y-intercept = 2 y 25 x 2 1 x -4 -3 -2 -1 y 2 0 -2 -4 Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. x 5 10 15 20 y 3 4 5 6 Find the slope and y-intercept from the table. Then write an equation in slope-intercept form. x 0 5 10 15 y 2 4 6 8 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 ANSWER QUESTION LEVEL OF DIFFICUL TY Fill in the missing parts of the table. 2 Equation Table x -1 y 0 Graph 1 2 y 2x 7 x -1 0 1 2 y 4 6 8 10 x -1 y 0 1 2 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.5 Given a linear function, interpret and analyze the relationship between the independent and dependent variables. Solve for x given f(x) or solve for f(x) given x. Unit: Linear Equations and Inequalities Target: QUESTION ANSWER LEVEL OF DIFFICULTY Daisy Hill Amusement Park charges a $5 admission fee plus $1.25 per ride. 2 a. Write an equation in intercept form (y = mx + b) to describe the relationship between the cost, y, and the number of rides, x. b. Explain the real world meaning of the values of m and b in your equation. c. Lucy goes to the park with $13.75. How many rides can she go on? d. If Linus rides on 20 rides, how much did it cost him? Charlie Brown burns 3.8 calories per minute when jogging. He burned 240 calories prior to jogging. 2 a. Write an equation in intercept form (y = mx + b) to describe the relationship between the total calories burned, y, and the number of minutes, x. b. Explain the real world meaning of the values of m and b in your equation. c. Charlie Brown burns a total of 450 calories. How many minutes did he jog? d. Charlie Brown jogs for 15 minutes. What is the total amount of calories she had burned? NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 QUESTION ANSWER LEVEL OF DIFFICULTY James spent the summer in Canada. Because Canada uses the metric system, he wanted to be able to convert Celsius temperatures to Fahrenheit temperatures. He remembered from science class that the relationship between the to systems is linear. He also remembered that water freezes at 0 degrees Celsius, or 32 degrees Fahrenheit, and it boils at 100 degrees Celsius, or 212 degrees Fahrenheit. 3 QuickTime™ and a decompressor are needed to see this picture. a. Show how James could use this information to write an equation for converting Celsius temperatures, C, to Fahrenheit temperatures, F. b. What is the Fahrenheit equivalent of 25 degrees Celsius? c. What is the Celsius equivalent of 59 degrees Fahrenheit? NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.6 Analyze how changing the parameters transforms the graph of f(x) = mx + b Unit: Linear Equations and Inequalities Target: QUESTION Write an equation for a line that is perpendicular to f (x) 23 x 2 . Write an equation for a line that is parallel to f (x) 3x 5 . LEVEL OF DIFFICULTY 3 f (x) x 2 2 2 2 5 y x3 2 Write an equation for a line that is perpendicular to 2 f (x) x 3 . 5 ANSWER 3 Write an equation for a line that is steeper than f (x) 3x 2 1 Write an equation for a line that intersects the y-axis below f (x) 2x 2 . 1 NCSD Math Renewal, Algebra Assessments – Linear Equations updated 1/10/2010 H.2A.7 Write, use, and solve linear equations and inequalities using graphical and symbolic methods with one or two variables. Represent solutions on a coordinate graph or number line. Unit: Linear Equations and Inequalities Target: QUESTION NCSD Math Renewal, Algebra Assessments – Linear Equations ANSWER LEVEL OF DIFFICULTY updated 1/10/2010