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English 15 Public

This is for Algebra II

Study Slideshow

Name this formula: (-b±√b^2-4ac )/2a

Quadratic Formula

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Factor Completely: 2x^2+7x-4

(x+4)(2x-1)

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1/2 ÷ 3/10 Don't forget to simplify

5/3

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What is the axis of symmetry for the parabola? 4x^2+16x-2

-2

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Find the roots of the equation 2x^2+2x=0

-1 and 0

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What is the discriminant of the equation? 2x^2+2x Use the Formula

4

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i^16

i

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√-16

4i

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Justify this step: 2(2x+8) 4x+16

Distributive

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Justify this step: 2400(1)=2400

Multiplicative identity

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What is the slope of the given line? y=-1/4x+45

-1/4

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What is a y-intercept?

Where x=0 or where the line hits the y axis

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Name the form of the equation: 2x-y=6

standard form

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Change the equation into slope intercept form: 2x-y=6

y=2x-6

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What is the slope formula?

(y2-y1)÷x2-x1 Pretend those are subscripts

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