Quiz Equations and Functions

2(x + 6) + 3 = 9 + 5x

• 16
• 2
• -8
• -10

According to the picture, which point is the solution to the system of equations? 

• (-3, 2)
• (-3, -2)
• (-2, 3)
• (-2, -3)

Tags

CCSS.8.EE.C.8A

Does the graph represent a function?  

• Yes, it passes the vertical line test. 
• Yes, it fails the vertical line test. 
• No, it passes the vertical line test. 
• No, it fails the vertical line test. 

Does the table represent a function?

• Yes, there  is a repeated x-value. 
• No, there aren't any repeated y-values. 
• Yes, there are repeated y-values. 
• No, there is a repeated x-value. 

Sally charges $5/hour in her dog walking service, plus a $15 fee to pick up the dogs. Frank charges $10/hour in his dog walking service, but charges no pick-up fee. How many hours must they walk the dogs in order for the charge to be the same?

• 1 hour

• 2 hours

• 3 hours

• They will never charge the same amount of money.

What value of x balances the scale?

• 2

• -2

• 3

• 4

Sally charges $5/hour in her dog walking service, plus a $15 fee to pick up the dogs. Frank charges $10/hour in his dog walking service, but charges no pick-up fee. Which equation should be used to determine the time in hours, h, it will take when for the total charge to be the same?

• 15x + 5 = 10

• 5x + 15 = 10

• 5x + 15 = 10x

• 5x + 10 = 15x

Pheobe has $500 in a savings account at the beginning of the summer. She wants to have at least $200 in account by the end of the summer. She withdraws $25 each week for food, clothes, and movie tickets. Write an inequality that represents Pheobe's situation.

• 200+25w ≥ 500
• 500-25w ≥ 200
• 500+25w ≤ 200
• 200-25w ≤ 500

Tags

CCSS.7.EE.B.4B

The model represents an equation. What value of x makes the equation true?

• 2.50

• -2.25

• 2.25

• -2.50

Tags

CCSS.8.EE.C.7B

-11 + 3(b + 5) = 7

• b = 1
• b= -1
• b = 3
• b = -3

Tags

CCSS.7.EE.B.4A