Final answer:
The equation y = 25x + 75 represents Amber's earnings, with a slope of 25 and a y-intercept of 75.
Step-by-step explanation:
The equation y = 25x + 75 represents Amber's earnings.
In this equation, x represents the number of trees Amber sells, and y represents the amount of money she earns.
The slope of the equation, 25, tells us that for each tree Amber sells, she earns $25.
The y-intercept, 75, represents the base amount Amber earns each week before selling any trees.