1. Algebra
Chapter 4 Quiz Review

2. 1) Graph A(2, -5) and B(-4, -7)
. A(2, -5)
. B(-4, -7)

3. 2) New Stuff: Find three different ordered pairs that are solutions of the equation.
y = -3x + 5
Answer: x y
-1 8
0 5
Solutions(-1,8);(0,5);(1,2)
y = ¼ x – 2
Answer: x y
0 -2
Solutions(-4,-3);(0,-2);(4,-1)

4. 3) Use a table of values to graph y = -2x + 3
X Y
(-1, 5)
(0, 3)
(1, 1)
Y = -2x + 3

5. 4) Use a table of values and graph the equation –x + 2y = - 8
4) Use a table of values and graph the equation –x + 2y = - 8. Solve for y first!
X Y
Y = ½ x -4
(2, -3)
(0, -4)
(-2, -5)

6. 5) Write the equation -3x + 2y = 6 in slope-intercept form.
Answer: y = 3/2x + 3

7. 6) Graph x + 2y = 8 using slope-intercept form.
y = -1/2x + 4
(0, 4)
Y = -1/2x + 4

8. 7) New Stuff: Verifying a Solution
Is the point (-1, 2) on the graph of
x + 3y = 5?
Answer: (-1) + 3(2) = ?
5 = 5 Yes!
Decide whether the ordered pair (3, 4) is a solution of the equation 4x + y = 8.
Answer: No!

9. 8) Find the x-intercept and y-intercept and graph 8x - 2y = 16
(2, 0)
(0, -8)

10. 9) Graph 5x + y = -5 using any of the three methods.
5x + y = -5 or y = -5x - 5

11. 10) Graph y = -3
y = -3
(0, -3)

12. 11) You are organizing a fundraising dinner and want to sell $1500 worth of tickets.
Assuming 200 adults and 100 children will attend, how much should you charge for each adult ticket and each child ticket?
Let a = adult ticket price let c = child ticket price
200a + 100c = Graph by finding the intercepts
a c
Student
price
(0, 15)
(4, 7)
(5, 5)
(6, 3)
(7.5, 0)
Adult price

13. Homework
P. 214 #13-29 odd, P 217 #76-78, P. 224 Quiz 1 #5-16