Unit 11 Test Day Warm Up

Presentation

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Mathematics

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9th - 12th Grade

•

Medium

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CCSS

HSA-REI.B.4B, 8.EE.A.2, HSF-IF.C.7A

Standards-aligned

Diana Banzet

Used 7+ times

FREE Resource

4 Slides • 7 Questions

Look at the following equation:

Sometimes there has to be more moved in order to isolate the x² value.

Taking the Square Roots

(ax+c)²=0

ax²+c =0

Missing "b" or "x" term
Doesn't have to =0
Get x² or the binomial squares by itself before taking the square root.
Don't forget the +/-

Multiple Choice

Solve 3x² - 192 = 0

-32 or 32

No Solution

-8 or 8

-64 or 64

Factoring

ax²+bx+c=0

Must be in standard form and =0
If missing "c" term the use GCF Factor (Pull out the biggest number the terms share)
After factoring, Set both factors =0 and Solve for x.

Multiple Choice

What are the zeros?

x= 0 and x= -4

x= 0 and x= 4

y= 0

x= 2

Multiple Choice

Solve
a² + 2a - 24 = 0

a = -6, 4

a = 6, -4

a = 12, -2

a = 8, -3

Multiple Choice

Solve
2x² + 17x + 21 = 0

x= ^-21/₂, -17

x= ²/₃, 16

x=-7, ^-3/₂

x=15, -³/₇

Quadratic Formula

Must be in standard form and =0
Use when equation is not factorable
ALL QUADRATICS CAN BE SOLVED WITH THE QUADRATIC FORMULA!

Multiple Choice

Solve the equation using the quadratic formula.

$-10k^2-6k+6=0$

$x=\frac{-3\pm\sqrt{69}}{10}$

$x=\frac{6\pm2\sqrt{69}}{-20}$

$x=\frac{-3\pm\sqrt{51}}{10}$

$x=\frac{6\pm2\sqrt{51}}{-20}$

Multiple Choice

What is the solution of $x^2=6x-3$ ? Use the Quadratic Formula

$\frac{6\pm2\sqrt[]{6}}{-2}$

$\frac{6\pm2\sqrt[]{6}}{2}$

$\frac{-6\pm2\sqrt[]{6}}{-2}$

$\frac{-6\pm-2\sqrt[]{6}}{-2}$

Poll

How do you feel now after reviewing?

Great, I'm ready!

I should have studied more

Not sure yet (in between)

Look at the following equation:

Sometimes there has to be more moved in order to isolate the x² value.

Show answer

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