Math 03
Chapter 4 Test 100 pts
Name ________________________________
1. Decide whether the given ordered pair is a solution of the given equation. (4 pts)
2 x  y  6 ; (2, -2)
2. Plot and label the following points. A(2, -3); B(-5, -1); C(0, 4); D(-4, 5). (8 pts)
y
x
3. Find the x- and y-intercepts of the following equation.
4 x  3y  12
4. Find the slope of the line shown in the graph. (4 pts)
y
x
5. Find the slope of the following line.
6. Refer to the given equation.
(a) find the slope.
9x  7 y  5
(4 pts)
0  4 x  5y  3 (4 pts each)
(b) find the slope a of a parallel line.
7. State the slope of each line. Determine if the pair of lines are parallel. (6 pts)
x  4y  2
2x  4 y  1
8. Sketch each line. (4 pts each)
(8 pts)
(a) y 
2
x2
3
(b)
4y  7y  6
y
y
x
(c)
x
3x  y  5
(d)
y
5x  6 y  30
y
x
(e)
 4 x  3y
x
(f)
y
3x  9 y  18
y
x
x
9. Write the equation of each line shown. Write your answer in slope intercept form. (6 pts each)
(a)
(b)
y
y
x
x
10. A company finds that it can make a total of 22 generators for $13,800, and that 10 generators cost $7600.
(a) Sketch a graph that shows dollars, y, on the vertical axis and number of generators, x, on the horizontal axis.
(4 pts)
(b) What is the slope of the line? (6 pts)
(c) Write an equation for the line. (6 pts)
11. (a) Find the equation of the horizontal line passing through the point (-2, 3).
(b) What is the slope of the line? (2 pts)
(4 pts)