Download Study Guide for test on 11/22

Study Guide for test on 11/22
Graph each equation
1.
2.
3.
4.
5.
6.
y=1
y = -2x
y=4–x
y = 2x – 3
y = 5 – 2x
y= 1/2x + 2
Solve each equation for the variable
7. 4x + a = 6x, for x
8. 8a + y = 16, for a
9. y = mx + b, for m
10. v = r + at, for a
Simplify each expression
11.(3x + y) – (2x + y)
12. (7x – 2y) – (7x + 4y)
13. (16x – 3y) + ( 11x + 3y)
14. (8x – 4y) + (-8x + 5y)
15. 4(2x + 3y) – (8x – y)
Graph each system of equations. Then
determine whether the system has no solution,
one solution, or infinitely many solutions. If it
has one solution, tell what it is.
16. y = -x
y = 2x
17. x + y = 8
x–y=2
18. x + y = 2
y = 4x + 7
Use substitution to solve each system
of equations
19. y = 5x
2x + 3y = 34
20. y = 2x + 3
y = 4x - 1
21. 8x + 2y = 13
4x + y = 11
The base of a triangle is 4 in longer
than the length of one of the other
sides. The perimeter is 46 in. Use a
system of equations to find the length
of each side of the triangle.
x
x
P = 46in
y