Part A A toy cannon ball is launched from a cannon on top of a platform. The equation h(t) = –5t2 + 30t + 8 gives the height h, in meters, of the ball t seconds after it is launched. What equation can be used to tell whether the ball reaches a height of 34 m?

A. –5t2 + 30t + 8 = 0

B. –5t2 + 30t + 8 = 34

C. –5t2 + 30t + 4 + 34 = 0

D. –5t2 + 30t + 4 = t + 34

Part B

A toy cannon ball is launched from a cannon on top of a platform. The equation h(t) = –5t2 + 30t + 8 gives the height h, in meters, of the ball t seconds after it is launched. Does the ball reach a height of 34 m?

A. yes

B. no

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

a

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: