IXL - Identify graphs: word problems (Algebra 2 practice)

Mr. Harris preheats the oven so he can bake his famous cherry pie. Once the oven is warm enough, he puts the pie in to bake.

Which graph could show the temperature of the oven over time?

ref_doc_title.

Learn with an example

question

Keenan is a sprinter on his school's track team. During a race, his breathing rate increases until it is much higher than his resting breathing rate. His breathing rate remains elevated until the race is over. Once the race is finished, Keenan's breathing rate gradually returns to normal.

Which graph could show Keenan's breathing rate during and after a race?

solution

You want to find the graph that could show Keenan's breathing rate during and after a race. So, consider each part of the story and what the graph should show.

Keenan is a sprinter on his school's track team. During a race, his breathing rate increases until it is much higher than his resting breathing rate.

As Keenan runs, his breathing rate increases. The graph should show an increasing

segment.

His breathing rate remains elevated until the race is over.

Keenan's breathing rate stays constant, at the elevated rate, for the remainder of the race. The graph should show a horizontal

segment.

Once the race is finished, Keenan's breathing rate gradually returns to normal.

Keenan's breathing rate gradually decreases until it returns to its starting rate. The graph should show a decreasing

segment.

Notice that the start and end of the race show Keenan's breathing at fewer breaths per minute, but not 0 breaths per minute.

This graph shows all of the parts of the story in order:

$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

Questions
answeredQuestions

Time
elapsedTime

hr	min	sec
00	00	06

SmartScore
out of 100
IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

Teacher tools

Work it out

Not feeling ready yet? These can help:

N.4Evaluate a linear function from its graph: word problems

A.4Find values using function graphs

Excellent! You got that right!

Jumping to level 1 of 1

Excellent!