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Algebra I and Concepts Ch. 3 Test Review Directions 1) Get out a piece of paper, put your name and “Ch. 3 Test Review” at the top 2) As each slide appears, work through the problems shown. You may not finish them all, that is ok! Don’t rush, work through what you can. 3) When the answer slide is posted, check your answers, find and correct mistakes. Ask questions if necessary. 4) Finish any questions by looking up the review on my website 5) This will be turn in on MONDAY with your homework Find the x and y intercepts of the lines graphed Find the x and y intercepts of the lines graphed X-int: (-5, 0)y-int: (0, 3) X-int: (7, 0) y-int: (0, 7) Find the x and y intercepts of the following equations 1) -5x + 8y = -40 2) x – 3y = 15 Find the x and y intercepts of the following equations 1) -5x + 8y = -40 X-int: (8, 0) Y-int: (0, -5) 2) x – 3y = 15 x-int: (15, 0) y-int: (0, -5) Graph using the x and y intercepts 1) 3x – 4y = 12 2) -x – 3y = 9 Given two functions, determine any similarities and differences of their graphs. (Hint: Use cover-up to graph) 1) 3x – 4y = 12 2) -x – 3y = 9 Find the slope of the line through the 2 points, then use the slope to classify the line as, horizontal, vertical, or oblique 1) (-3, 7) (-3, 4) 2) (-4, 3), (-2, 1) 3) (5, 2), (-6, 2) Find the slope of the line through the 2 points, then use the slope to classify the line as, horizontal, vertical, or oblique 1) (-3, 7) (-3, 4) Slope: undefined Vertical Line 2) (-4, 3), (-2, 1) Slope: -1 Oblique 3) (5, 2), (-6, 2) Slope: 0 Horizontal Line Word Problems! 1) In 2000, the cost of in-state tuition at Mizzou was $9,000 a year. In 2013 the cost of in-state tuition is $21,000. Find the rate of change. Word Problems! 1) In 2000, the cost of in-state tuition at Mizzou was $9,000 a year. In 2013 the cost of in-state tuition is $21,000. Find the rate of change. Increasing $923.07 per year Complete the problems: The following table represents a linear function. Fill it in and identify the x and y intercepts X Y -2 12 -1 8 0 1 2 Graph the line if the x intercept is 5, and the y-intercept is -3 Complete the problems: The following table represents a linear function. Fill it in and identify the x and y intercepts X Y -2 12 -1 8 0 4 1 0 2 -4 X-int: (1,0) Y-int: (0, 4) Graph the line if the x intercept is 5, and the y-intercept is -3 Graph the following equations by filling in the table and using the points 1) y = -x + 4 x -2 -1 0 1 2 y 3) y = 3x + 8 x y -2 -1 0 1 2 Graph the following equations by filling in the table and using the points 1) y = -x + 4 x -2 -1 0 1 2 y 6 5 4 3 2 3) y = 3x + 8 x -2 -1 0 1 2 y 2 5 8 11 14 Mrs. Huseman and Ms. Howard are going to put up Christmas lights. They lean a ladder against the house and the top of the ladder touches the house at 12 feet above the ground. The base of the ladder is 6 feet from the side of the house. a) Draw a picture of the situation and label everything! b) What is the slope of the ladder as a positive number? Mrs. Huseman and Ms. Howard are going to put up Christmas lights. They lean a ladder against the house and the top of the ladder touches the house at 12 feet above the ground. The base of the ladder is 6 feet from the side of the house. a) Draw a picture of the situation and label everything! b) What is the slope of the ladder as a positive number? Slope = 2