Question

khloe reaches the end of a hiking trail and hikes back to her car at a constant rate. after 1 hour (h), she is 8 miles (mi) from her car. after 3 h, she is 2 mi from her car. her distance from her car in miles, y, is a function of the time it takes to hike to her car in hours, x.
points on the graph: (1, 8) and (3, 2)
rate of change: -3
substitute (1, 8) in the equation.
$y = -3x + b$
$? = -3( ? ) + b$

Explanation:

Step1: Identify x and y from the point

The point is (1, 8), so x = 1 and y = 8.

Step2: Substitute into the equation

Substitute x = 1 and y = 8 into \( y = -3x + b \). So we get \( 8 = -3(1) + b \).

Answer:

The first "?" should be 8 and the second "?" should be 1, so \( 8 = -3(1) + b \)