Answer:
Explanation:
y = -5 (x² + 1 - 2x) + 5
y = -5x² + 10x - 5 + 5
y = -5x² + 10x
maximum height = y coordinate of the vertex of the parabola
x = -10/-10
x = 1
y = -5 (1)² + 10 (1)
y = -5 + 10
y = 5
5 meters
b) the x coordinate of the vertex is 1
1 meter
c) since the term without x is 0, the ball was kicked from the ground
0 meters
d) we have to find the x-intercept
-5x² + 10x = 0
-5/-5 x² + 10/-5 x = 0/-5
x² - 2x = 0
x(x-2) = 0
x = 0
x = 2
2 meters