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Equations

100

Solve:

3x + 5 = 20

x = 5

200

Solve:

2(x - 4) = 10

x = 9

300

Solve:

4x + 7 = 2x - 9

x = -8

400

Solve:

5(x + 2) - 3 = 2x + 17

(answer as a fraction)

x = 10/3

500

Solve:

(3/4)x - 6 = (1/2)x + 2

x = 32

Functions

100

Is the relation a function?

{(1, 2), (2, 3), (1, 4)}

No

200

What is the y-intercept of 

y = 4x² + 2x - 7

-7

300

Evaluate:

If f(x) = 2x² - 3, find f(2).

f(2) = 5

400

Which function is nonlinear?

a. y = -2x + 5

b. y = x² - 4

c. y = (1/3)x

d. y = -7x - 1

B; quadratic

500

Describe what happened to make

y = x²

into

y = (x - 3)²

shift right 3 units

Systems

100

Solve:

y = x + 2

y = x + 5

No solution

200

Solve:

x + y = 10

x = 4

(4, 6)

300

Solve:

y = 2x

x + y = 12

(4, 8)

400

Solve:

2x - y = 6

4x - 2y = 12

Infinitely Many Solutions

500

Solve:

y = 2x²+ 3x - 4

y = 2x + 2

(-2, -2) and (1.5, 5)

Quadratics

100

Simplify:

7a + 3a

10a

200

Simplify:

(x + 3)(x - 3)

x² - 9

300

Factor:

x² + 7x + 10

(x+5)(x+2)

400

Factor:

4x² - 9

(2x - 3)(2x + 3)

500

What is the smaller zero of

y = x² + 3x - 4

-4

Exponents

100

Simplify:

2³ * 2⁴

(write in exponential form)

2⁷

200

Simplify:

(x³)²

(write in exponential form)

x⁶

300

Simplify:

2x⁵ * 3x²

(write in exponential form)

6x⁷

400

Simplify:

(2x²)³

(write in exponential form)

2³x⁶

OR

8x⁶

500

Simplify:

(x³) / (x⁸)

(write in exponential form)

1 / x⁵