Equations from Graphs, Tables, Stories

Which equation represents the situation?

• y = 0.8x + 0.1

• y = 0.1x + 0.8

Answer explanation

0.1 pounds per day

(rate)

0.8 pounds at birth

(initial value)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which equation represents the situation?

• y = -6x + 27

• y = 27x - 6

Answer explanation

-6 is the rate because he USES 6 gallons of gas per hour

Tags

CCSS.6.EE.C.9

Which equation represents the situation?

• y= 5/2x - 40

• y = -5/2x+ 40

• y = -5x + 40

Which equation represents the situation?

The graph shows a person weight loss each week.

How much did they weigh to start?
(initial value)

• 200 lbs

• 180 lbs

• 190 lbs

Tags

CCSS.HSF.LE.B.5

The graph shows a person weight loss each week.

How much did they lose per week?
(slope)

• -20 lb per week

• -1/4 per week

• -5 lbs per week

Answer explanation

Use (0,200) and (4,180) to find slope.

Tags

CCSS.HSF.IF.B.4

The graph shows a person weight loss each week.

Which equation represents this situation?

• y = -20x + 200

• y = -5x + 200

• y = -1/4x + 180

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the initial value (y-intercept) ?

• 0 miles

• 30 miles

• 60 miles

• 10 miles

Tags

CCSS.8.EE.B.5

What is the rate of change (slope) ?

• 30 miles/gallon

• 15 miles / gallon

• 60 miles/gallon

• 10 miles / gallon

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Which equation represents the situation?

• y = 30x + 10

• y = 30x

• y = 15x

• y = 15x + 30

Tags

CCSS.8.EE.B.5