Algebra 1 - Quiz 4

Which chart could represent the function  $f\left(x\right)\ =\ -2x+6$  

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What is the solution to  $2h+8>3h-6$  

•  $h<14$  

•  $h<\frac{14}{5}$  

•  $h>14$  

•  $h>\frac{14}{5}$  

Which function defines the sequence,  -6, -10, -14, -18, ..., where  $f\left(6\right)\ =\ -26$  

•  $f\left(x\right)=\ -4x-2$  

•  $f\left(x\right)\ =\ 4x-2$  

•  $f\left(x\right)\ -\ -x+32$  

•  $f\left(x\right)\ =\ x-26$  

A parking garage charges a base rate of $3.50 for up to 2 hours, and an hourly rate for each additional hour. The sign below gives the prices for up to 5 hours of parking

Parking Rates

2 hours $3.50

3 hours $9.00

4 hours $14.50

5 hours $20.00

Which linear equation can be used to find x, the additional hourly parking rate:

• 9.00 + 3x = 20.00

• 9.00 + 3.50x = 20.00

• 2x + 3.50 = 14.50

• 2x + 9.00 = 14.50

Kendal bought x boxes of cookies to bring to a party. Each box contains 12 cookies. She decides to keep 2 boxes for herself. She brings 60 cookies to the party. Which equation can be used to find the number of boxes, x, Kendal bought?

• 2x - 12 = 60

• 12x - 2 = 60

• 12x - 24 = 60

• 24 - 12x = 60

Andy has $310 in his account. Each week, w, he withdraws $30 for his expenses. Which expression could be used if he wanted to find out how much money he had left after 8 weeks?

• 310 - 8w

• 280 + 20(w-1)

• 310w = 30

• 280 - 30(w-1)

Which value would be a solution for x in the inequality  $47-4x<7$  

• -13

• -10

• 10

• 11

An equation is given below:  $4\left(x-7\right)=0.3\left(x+2\right)+2.11$ 
The solution to the equation is:

• 8.3

• 8.7

• 3

• -3

A part of Jennifer;s work to solve the equation  $2\left(6x^2-3\right)=11x^2-x\$  is shown below:

Given:   $2\left(6x^2-3\right)\ =\ 11x^2-x$ 

Step 1:   $12x^2-6=11x^2-x$ 

Which property justifies her first step

• Identity property of multiplication
  

• multiplication property of equality
  

• commutative property of multiplication
  

• distributive property of multiplication over subtraction
  

A plumber has a set fee for a house call and charges by the hour for repairs. The total cost of her services can be modeled by   $c\left(t\right)\ =\ 125t+95$  which statements about this function are true?

I.  A house call fee is $95.

II.  The plumber charges $125 per hour

III.  The number of hours the job takes is represented by "t".

• I and II, only
  

• I and III, only
  

• II and III, only
  

• i, II, and III