Linear Functions Quiz Review

What is the slope of the line through the point (-1, 6) and (3, -4)?

• m = -5/2
• m = -1/2
• m = 5/3
• m = -3/4

Randy charges his tenants $400 each month to rent his houses plus $600 security deposit. In the new year, the property taxes increased on the area where he rents so as a result he must increase the rate of change by $25 to ensure his profits are not harmed. What equation best represents how much his tenants will now have to pay? 

• y = 425x + 600
• y = 425 + 600x
• y = 400x + 625
• y = 400 + 625x

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

• h = 2C + 15
• C = 15h + 2
• h = 15C + 2
• C = 2h + 15

Which equation matches the table?

• y=2x
• y=x-3
• y=x+2
• y=1/2x

Writing Equations:
Given the following table, write the linear equation.

• y = 9x + 3
• y = 3x + 12
• y = 3x + 9
• y = 1x + 12

f(x) = x+7 find f(4)

• 11

• 12

• 9

• 10

f(x) is the same thing as ______.

• y
• x
• input
• an equation

f(x) = x² + 7
x(3) = ______

• 16
• 13
• 15
• 14

What is the value of x in:
f(3) = 2x + 1

• 3
• 2
• 1
• 0

If I know that f(2) = 4, what is another way I can write my answer?

• 2,4

• (2, 4)

• That is the only way to write it.