Please Help with Algebra 1

Question

The height, h, in feet, of an object

thrown upward from the height 160 feet is the

function of time, t, in seconds. What is the height

of the object at 5 seconds.

h(t)=-16t2 +152t + 160

Answer 1

The function that they give you actually explains the height of the object at any time, t

Here's your function:

h(t)=-16t² +152t + 160

Notice that your starting height is the last number (160) because when t=0, all the other terms become 0 and h(0) = 160

To get the height at time t=5, simply plug in 5 for all values of t.

h(5) = -16*(5)² + 152*(5) + 160

h(5) = 520 feet

Answer 2

-16*5^2 + 152*5 + 160 =

-16*25 + 152*2+160 =

-400 + 252 + 160 =

-400 + 412

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