For a science project , Joseph launches a model rocket. The function h(s) = - 3s ^ 2 + 6s + 45 represents the height in feet of the rocket after s seconds . It will take the rocket second ( s) to reach its maximum height .

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.

hope it is correct if not i'm srry i tried to