Modeling with Quadratic Equations

Question 1

Determine the value of v, rounded to the nearest whole number.

Revolt · Accepted Answer

56

Question 2

Which quadratic equation models the situation correctly?

Revolt · Accepted Answer

h(t) = –16t2 + 56t + 6.5

Question 3

Why can you eliminate the solution of -0.2 in the context of this problem? Check all that apply.

Revolt · Accepted Answer

It does not make sense for time to be negative.; The ball cannot hit the ground before it is thrown.

Question 4

To the nearest tenth of a second, the ball is in the air for s.

Revolt · Accepted Answer

2.4

Question 5

To determine the value of f, substitute a pair of values for d and v into the equation and solve. Rounded to the nearest hundredth. ⇒ 0.35

Revolt · Accepted Answer

0.35

Question 6

Which quadratic equation models the situation correctly?d(v) = 2.15v² / 0.35✔ d(v) = 2.15v² / 22.54d(v) = 2.15v² / 64.75X d(v) = 2.15v² / 184

Revolt · Accepted Answer

✔ d(v) = 2.15v² / 22.54

Question 7

Which quadratic equation models the main cable of the bridge correctly?

Revolt · Accepted Answer

y = 0.0048(x – 50)2 + 6

Modeling with Quadratic Equations Answers