Afunction is defined by f(x)=x/4, what is f(-8)

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Which graph represents the parent function of y=(x+2)(x-2)