Slope of -2 and Point (-2, 1)

At which value in the domain does f(x) =0?

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how