Mid Term Review Algebra I

• The dependent variable is total cost
• The dependent variable is weight
• The independent variable is total cost
• The independent variable is cost of a package

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

For the function f(x) = -3x + 3 find f(0).

• 0

• -3

• 3

• -1

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Identify the domain of the following relation:

• -6, 14, 2, 28

• (-6,14), (0,32), (2,38), (4,44)

• -6, 0, 2, 4

• 14, 32, 38, 44

In order to earn extra spending money, Dalton babysits children after school. The greater the number of hours he babysits, the more money he earns.
h = the number of hours Dalton babysits
m = the amount of money Dalton earns
Which of the variables is dependent?

• h

• m

• the independent variable is distance
• the independent variable is d=25 t
• the dependent variable is time
• the dependent variable is distance

What makes a graph proportional?

• Linear

• The line goes through the origin

• Curvy line

• Linear and the line goes through the origin

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Is this graph proportional?

• Yes

• No