(a) 
gives the height at time 
, so the flare's starting height is given by 
:
(b) There are several ways to find the maximum height of the flare. One is to complete the square and write in vertex form:
That is, describes a parabola whose vertex is located at (9, 406); the coefficient of -5 tells us that the parabola is concave, which means the parabola "opens" downward, and the vertex is a maximum. So the maximum height is 406 m.
(C) The flare hits the ground when 
:
or at about 
and 
. We ignore the negative solution (negative time makes no physical sense).
Answer:
danggg thats a WAPPPP
Step-by-step explanation:
Hey there! :D
First, find the slope.
m= (y2-y1)/(x2-x1) I'm using points (0,3) and (1,5)
m=(5-3)/(1-0)
m= 2/1
m=2
Now, plug that into point slope. Use point (1,5) m=2
y-y1= m(x-x1)
y-5= 2(x-1)
Distribute.
y-5=2x-2
Add 5 to both sides.
y=2x+3 == equation of the line in slope intercept form. y=mx+b
I hope this helps!
~kaikers
It makes a rectangle if graphed.
If you need more help just comment!
Please like and brainiest
Answer:
-16
Step-by-step explanation:
(3/4)x+7=-5
(3/4)x=-12
x=-12(4/3)
x=-16
