Question

the equation for the line of best fit is y = 1.2x + 2. according to the equation, which of these statements is true? a student who could not do any chin - ups at the start of the year could likely do about 2 chin - ups at the end of the year. a student who could do 2 chin - ups at the start of the year could likely do about 3 chin - ups at the end of the year.

Explanation:

Step1: Substitute x = 0 into the equation

When x = 0 (student could not do any chin - ups at start of year), we use the line of best fit equation $y=1.2x + 2$.
$y=1.2\times0+2$

Step2: Calculate the value of y

$y = 2$. So a student who could not do any chin - ups at the start of the year could likely do 2 chin - ups at the end of the year.
For the second statement, when x = 2, $y=1.2\times2+2=2.4 + 2=4.4$ not 3. So the second statement is false.

Answer:

A. A student who could not do any chin - ups at the start of the year could likely do about 2 chin - ups at the end of the year.