Interpreting Graphs of Linear Functions in Context

What would be the temperature after 20 hrs?

what would the y value be when the x value is 26?

Tags

CCSS.HSF.LE.B.5

The graph shows the height (cm) of a candle, y, as it burns over x hours, what does the x-intercept (4.5,0) mean?

• The candle is 4.5 cm tall after a couple of hours.

• Candle start at 4.5 cm,

• The candle is 0 cm after 4.5 hours.

• The candle burns at 4.5 cm per hour.

Tags

CCSS.HSF.LE.B.5

Derek works at Subway making $9.25 an hour.  The function d(x)=9.25x tells us how much money Derek makes after x hours of working.  What is the meaning of d(4)=37?

• After 4 hours of work, Derek makes $37.

• Derek needs $4 more to have $37 total.

• After working for 4 days, Derek makes $37 total.

• After 4 hours of work, Derek now makes $37 an hour instead of $9.25.

Tags

CCSS.HSF.LE.B.5

Ms. Brackemyer is collecting pencils.  The function p(x)=5x+12 tells us the total amount of pencils Ms. Brackemyer has after collecting for x number of days.  What is the meaning of p(8)=52?

• Ms. Brackemyer starts with 8 pencils and ends with 52.

• After 8 days, Ms. Brackemyer has 52 pencils.

• Ms. Brackemyer starts with 52 pencils and gets 4 more every day.

• Every day, Ms. Brackemyer gets 4 new pencils until she has 52.

Tags

CCSS.HSF.LE.B.5

According to the graph, at what speed is this car traveling in miles per hour?

• 80 mph

• 20 mph

• 40 mph

• 160 mph

Tags

CCSS.8.EE.B.5

What is the rate of change demonstrated in this graph?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Which of the following is another meaning of y-intercept?

• location

• initial value

• total

• constant rate

Tags

CCSS.HSF-IF.C.7A

Dorothy loves to make cakes.  The following table shows how the number of eggs that she has left changes as she makes cakes.
What is the meaning of the y-intercept?

• She uses 5 eggs for every 2 cakes.

• She started with 47 eggs.

• She uses 47 eggs for every 0 cakes.

• She started with 5 eggs.

Tags

CCSS.HSF.LE.B.5

Which of the following points is a y-intercept?
(-2,3) (4, -2) (0, 5) (-9,0)

• (-9,0)

• (-2,3)

• (4,-2)

• (0,5)