8(-5x + 3) use x = 6 how do i do this?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp