200k views
2 votes
Its height (in meters), xxx seconds after the launch, is modeled by: h(x)=-5x^2+20x+60h(x)=−5x 2 +20x+60h, left parenthesis, x, right parenthesis, equals, minus, 5, x, squared, plus, 20, x, plus, 60 What is the height of the object at the time of launch?

User Ryanman
by
5.2k points

2 Answers

4 votes

answer is 60 if your looking for METERs, and 6 if your looking for SECONDS

User Harvey Darvey
by
5.4k points
2 votes

Answer:

60 meters

Explanation:

The height of the object (in meters) after x seconds of the launch is modeled as
h(x) = -5x^(2) +20x+60

So, putting any value of x in seconds we get the height of the object.

Now, we are asked what is the height of the object at the time of launch.

Now, putting x = 0, we get, h(x) = - 0 + 0 + 60 = 60 meters. (Answer)

User Joachim Marder
by
5.5k points