Please help me i dont understaand this
2. an object is propelled straight up from the ground with an initial velocity of 90 feet per second.
a. write an equation that models this seniero
b. use your equation to find the hight of the object after 2 seconds
c. what time will the object hit the ground
d. what is the Y intercept what does it represent in this problem

Question

Please help me i dont understaand this
2. an object is propelled straight up from the ground with an initial velocity of 90 feet per second.
a. write an equation that models this seniero
b. use your equation to find the hight of the object after 2 seconds
c. what time will the object hit the ground
d. what is the Y intercept what does it represent in this problem

misty1212 · Answer

HI!!!

misty1212 · Answer

use $$h(t)=-16t^2+90t$$

anonymous · Answer

ok thank you any other help u can give me

anonymous · Answer

follow @misty1212 's equation, that gives you the height of the ball after any given time in seconds (t)

anonymous · Answer

ok can u walk me through how to do the question please?

anonymous · Answer

Sure. You're asked how high the ball will be after two seconds.
Then just set t = 2 on misty's equation and you're good to go ^^

anonymous · Answer

so just set it equal to 2 n solve the equation?

anonymous · Answer

yup.

anonymous · Answer

ok thank you so much!!!