algebra chapter 4 formulas Flashcards by Maria Smith

Q

Rate of change

A

change in x

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Q

Standard form

A

Ax + By = C

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Q

Slope

A

rise
––––
run

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Q

Slope formula

A

m = y2 - y1
–––––––
x2 - x1

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Q

Direct variation

A

y =kx

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Q

Slope-intercept form

A

y = mx + b

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Q

Point slope form

A

y - y1 = m(x - x1)

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Q

What is m

A

Slope

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Q

What is k

A

Constant of variation

Slope of a direct variation only

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Q

What is b

A

Y-intercept

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Q

Which variable is independent

A

X

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Q

Which variable is dependent

A

Y

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