Quizizz: Extra Credit Unit 3B

Create a PROPORTIONAL graph with two points

My dog eats 3 cups of food (y axis) in 2 days (x axis)

Tags

CCSS.8.EE.B.5

Which set of ordered pairs is a function?

• (9,5.5) (10.5,5) (9,-5) (10.5,-5)

• (3/7,4) (4,-3) (7,4)

  (3/7, 1/8)

• (6.5,-5) (7, -3) (8, -1)

  (9.7, 1)

• (2, -2.2) (5, 9) (5, -7)

  (1, 4.8)

Tags

CCSS.8.F.A.1

Does this graph represent a proportional relationship?

• Yes, because the line is pretty.
• No, because the line goes through the origin.
• Yes because the line goes through the origin at (0,0)

• No, because the graph is non-proportional.

Tags

CCSS.8.EE.B.5

Frank paid $5.85 for 15 Blow Pops. Each blow pop costs the same amount.

Which function can be used to find the total cost in dollars, c, for purchasing, b, Blow Pops?

(Hint: what would you do to find the cost of ONE blow pop?)

• c=0.39b

• c=87.75b

• c=15b

• c=5.85b

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What are the slope and the y-intercept of the function?

Slope:​ (a)  

y-intercept: (​ (b)   ,​ (c)   )

• 0.5
• 0
• 5.5
• .75
• -0.5
• 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

In a direct variation, y=39 when x=3.  Find the value of y when x=1/2

• 26
• 6.5

• 58.5
• 2

The graph of a linear function passes through the points (11,5) and (-4, -7)

Which equation represents the function?

Joseph ran a 6-mile race in 48 minutes. Which graph has a slope that best represents Joseph's average rate of speed during the race?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

Triangle HJK and triangle PMK are similar right triangles. The coordinates of all the vertices are integers. Which proportion can be used to show that the slope of HK is equal to the slope of PK?

(HINT: FIND THE SLOPE (positive or negative?) THEN FIND THE ANSWER CHOICE THAT MATCHES ON BOTH SIDES)

Tags

CCSS.8.EE.B.6

A point will be plotted on the grid with the segment to show y as a function of x. Which ordered pair can be added to the grid to show y as a function of x?

• (5,-7)

• (-7,5)

• (3,3)

• (-1,0)