During a physics experiment, a class drops a golf ball off a bridge toward pavement below. The
bridge is 75 ft high. The function h= -16t2 + 75
gives the golf ball's height h in feet above the
pavement after t seconds. Use the graph of the
function at the right. After how many seconds
does the golf ball hit the pavement?

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.