Question

picnic sites
the equation for the line of best fit is $y = -\frac{1}{100}x + 85$. based on the equation, which of these statements is true?
a picnic site at an elevation of 2,300 feet likely had a high temperature of about 50 degrees yesterday.
a picnic site at an elevation of 2,200 feet likely had a high temperature of about 63 degrees yesterday.

Explanation:

Step1: Substitute \(x = 2300\) into \(y=-\frac{1}{100}x + 85\)

\(y=-\frac{1}{100}\times2300+85=- 23 + 85 = 62\)

Step2: Substitute \(x = 2200\) into \(y=-\frac{1}{100}x + 85\)

\(y=-\frac{1}{100}\times2200+85=-22 + 85=63\)

Answer:

A picnic site at an elevation of 2,200 feet likely had a high temperature of about 63 degrees yesterday.