At Store A is the cost of apples the least. This is because it always has the lowest price for each pound compared to the other lines. Hope this helps!
Put the value of x = -1 to the equation of a function f(x):
Follow the "<em>y = mx + b</em>" formula, in which "m", stands for slope, and "b" stands for y-intercept
m = slope
m is located to the left attached to x.
-2 is in the place of m, therefore, -2 is the slope of the equation given.
-2 is your answer
hope this helps
