A ball is thrown, and the height (in meters) as a function of time (in seconds) is h = -5t2 + 20t + 2. Question 1: For how many seconds was the height of the ball at least 17 meters? Question 2: How long was the ball in the air?

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

16

step-by-step explanation:

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4