Log in
Sign up for FREE
arrow_back
Library

HW Quadratic Formula & Discriminant

star
star
star
star
star
Last updated over 2 years ago
12 questions
1
1
1
1
1
1
1
1
1
1
1
1
Question 1
1.

Solve using the Quadratic Formula:
Separate your answers with a comma.

Question 2
2.

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

Question 3
3.

Solve using the Quadratic Formula:
Separate your answers with a comma.

Question 4
4.

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

Question 5
5.

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

Question 6
6.

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

Question 7
7.

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

You must upload work where it asks you to or you will not get credit for that question!
Question 8
8.

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

Question 9
9.

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

#throwback because you have a test Nov 3rd/4th:

Use this information to answer #10-12.
Elijah was hiking up to the top of Torrey Pines Nature Reserve and saw Will below on the beach. Will really needed some sunscreen, so Elijah threw him a bottle of sunscreen from the top of the hill. The path of the sunscreen can be represented by the function: h\left(t\right)=-16t^{2}+80t+400 where h is height in feet and t is time in seconds.
Question 10
10.

How tall was the hill that Elijah threw the sunscreen from?

Question 11
11.

What was the sunscreen's maximum height after Elijah threw it?
Remember x=-b/2a

Question 12
12.

Will dove for the sunscreen but missed it!! How long did it take for the sunscreen to hit the ground?
Hint: use quadratic formula to solve!
Round your answer to the nearest hundredth.