Answer:
the slope of the tangent line at (40, f(40))the slope of the tangent line at (15, f(15)) the slope of the tangent line at (10, f(10))the slope of the line segment from (10, f(10)) to (40, f(40))
27 times 6
27*6=162
Julia made $162 that morning
I think that’s right
If you are asking for the formula thing, it is
y=3x+2
Well if the first point is (-2, 1) and the slope is three than the other point would be (-1, 4)
