The curve y= (k+2)x^2 meets the line y=(k+3)x +3. find the range of possible values of k.
could somebody explain how they get to their answer, too?
skills: simultaneous equations, discriminant, quadratic inequality & rearranging quadratics

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