3.1 & 3.2 Review

The temperature over a week is recorded in the table. Find the average rate of change in temperature from Monday to Thursday.

• 12/day

• -4/day

• -3/day

• 4/day

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A rocket's heigh is modeled by h(t)=-3t²+18t. Find the average rate of change from t=2 to t=5.

• 2.9 ft/sec

• -4.5 ft/sec

• -3 ft/sec

• -9 ft/sec

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the y-intercept of this graph?

• (500,190)

• (0,40)

• (40,0)

• (300,150)

What is the rate of change in this graph?

HINT: It is how much it cost you for ONE MILE.

• 0.30

• 30

• -0.30

• 40

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A podcast gains 120 new downloads every day, starting with 1,000 downloads on launch. The function D(t)=120t+1,000 represents the relationship between the number of days and the total number of downloads, where D(t) is the total downloads after t days.

The domain of this function is ​

• Linear

• Function Type

• 120

• Range

• (0,1000)

• Rate of Change

• {x|x≥0}

• Domain

• {x|x≥1,000}

• Y-Intercept

A snake eats 0.25 kg of food per week. It had 3 kg of food stored in its enclosure. F(w) = -0.25w+3 represents the relationship between the food available after a given number of weeks, where F(w) is the remaining food after w weeks.

• 0≤x≤12

• Rate of Change

• Negative Linear

• Y-Intercept

• -0.25

• Range

• (0,3)

• Domain

• 0≤y≤3

• Function Type

Tags

CCSS.HSF.LE.B.5

y=mx+b

What does m stand for?

• Rate of Change

• Y-Intercept

• Dependent Variable

• Slope Intercept Form

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

y = mx + b

What does b stand for?

• Rate of Change

• Y-Intercept

• Dependent Variable

• Slope Intercept Form

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3