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emily9102
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moneybird
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slope intercept form is y = mx + b
where m is the slope and b is yintercept
right?

emily9102
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yea @ money

moneybird
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\[m = \frac{y_2y_1}{x_2x_1}\] where points (x1, y1) and (x2, y2) are on the line

emily9102
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yes

Jusaquikie
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\[m=\frac{ y _{2}y _{1} }{x _{2}x _{1} } \] or \[ m=\frac{ 204 }{40 }\]

moneybird
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so (4, 20) and (0, 4) are the points can you find the slope with the formula

emily9102
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15/4

emily9102
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4**

Jusaquikie
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so the slope is 4 and you put that in the equation

moneybird
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y intercept occurs when x = 0

emily9102
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y=4x+b

moneybird
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when x = 0, what does y = to?

emily9102
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hmm y=b? 0.o

emily9102
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sorry getting a little confused

moneybird
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(0,4)
when x = 0, what does y equal to?

emily9102
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4

emily9102
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._. right?

emily9102
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@moneybird ?