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Laabri

HW Quadratic Formula & Discriminant

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Last updated about 3 years ago
12 Nsɛmmisa
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You must upload work where it asks you to or you will not get credit for that question!

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Solve using the Quadratic Formula:

Separate your answers with a comma.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Solve using the Quadratic Formula:

Type your answers as two parts with ± in between.

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Solve using the Quadratic Formula:

Separate your answers with a comma.

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Solve using the Quadratic Formula:

Type your answers as two parts with ± in between.

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Solve using the Quadratic Formula:

Type your answers as two parts with ± in between.

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Solve using the Quadratic Formula:

Type your answers as two parts with ± in between.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

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

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

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

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

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

Asemmisa {{asɛmmisaAhyɛnsode}}
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.

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

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

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

What was the sunscreen's maximum height after Elijah threw it?

Remember x=-b/2a

Asemmisa {{asɛmmisaAhyɛnsode}}
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.