Math Review Quiz for Day 1 of Intro to College Algebra

Given y = 2x + 3

Solve for y, when (Please provide an answer for each given x-value)

a. x = 2

b. x = 0

c. x = 5

d. x = -3

e. x = -1

Given y = 2x + 3

Solve for x, when (Please provide an answer for each given y-value)

a. y = 7

b. y = 1

c. y = 3

d. x = -3

e. x = -1

Given: 5 = 3x - 7

Is x = 3 a solution?

Please answer yes or no and JUSTIFY your answer (explain why or why not) .

Given: 2x = 7x + 5

Is x = 1 a solution?

Please answer yes or no and JUSTIFY your answer (explain why or why not) .

Find the absolute value of:

 $\left|-12\right|$  

• -12

• 12

Find the absolute value of:

 $\left|8\right|$  

• -8

• 8

Given:

 $y\ =\ 3x\ -\ 1$  
Identify the slope ( $m$  )

(a)  

Given:   y = 3x − 1

  
Identify the y-intercept ( $b$  )

(a)  

Given: y = 3x − 1

Explain how you determine if the slope of the line is increasing (going up) or decreasing (going down).