Functions
Linear Functions
Solve by Factoring
Mixed Review
100

Is the relation (-1,6) (4,2) (7,2) a function?

Yes

100

The slope of the line that passes through the points (3,-4) and (7,2).

What is 3/2?

100

3x2 - 6x = 0

What is x = 0, 2

100

What is the standard form of an equation?

Ax+By=C

200

f(-2) when f(x) = 6x - 4.

What is -16?

200

The slope of the line parallel to the line y = -3x - 7.

What is -3?

200

x2 - 25 = 0

What is x = 5, -5

200

Find the zeros of the function

f(x) = 2x/(x2 - 4)

What is x=0 (0,0)

300

(f-g)(x) when f(x) = 3x and g(x) = x + 5

What is 2x - 5?

300

The equation of the line that passes through the points (0,2) and (3,-2).

What is y = -4/3x + 2?

300

x2 + 2x - 24 = 0

What is x = -6, 4?

300

One machine produces keyboards in 30 minutes. An older machine takes 40 minutes. How long will it take the machines to work together to make one batch of keyboards.

1 5/7 hours

400

Find the domain of

f(x) = 2x/(x2 - 4)

What is all real numbers except 2 and -2

400

Solve the system of equations:
x+2y = 8

2x+3y = 10

x=-4, y=6

400

3x2+2x-1 = 0

What is x = 1/3, -1

400

Solve for x:

x/(x+4)=4/(x+2)

x=2


(-2 is extraneous)