Calculus help! Will give ALOT of points and will mark brainliest answer! I’ve done these problems before, same question but different numbers and now it’s telling me my equations are incorrect? How is that so? (Aka the ones in red not green)

What does the sign of the slope tell you about a line?

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?