What is the y-intercept for f(x) = x2 - 4x +6 ?

What is the value of x in the following equation. -x ^3/2 = -27

If the tip varies directly with the number of guest which equation represents between the tip, t, and the number of guest, g?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?