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4 years ago

HELP PLS 25 POINTS!!!!

Mathematics

1 answer:

Anika [276]4 years ago

5 0

Okay, let me first explain what the equation y = 8.77x + 686 means

y is the hikers elevation

Look at the graph and see what the y and x axis's are labeled as.

x is time.

8.77 is just the slop of the trend line.

686 is just the elevation the hiker starts at, or in technical terms, the y intercept. Y intercept is just where the lines touches the y axis.

The question asks what will be the hiker's elevation at 145 minutes.

To solve, just simply plug in 145 as X in the equation above. Remember x is time.

It will look like this :

y = 8.77 (145) + 686

Then solve.

y = 1271.65 + 686

y = 1957.65

Reminder: They want the nearest whole number!

Round 1957.65 feet to 1958 feet

Hope I helped! Message me if you have questions

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