jocelynloreto80068 jocelynloreto80068
  • 25-08-2021
  • Mathematics
contestada

Find an equation of a line that has a slope 7 and passes through the point 3,11

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AlgebraicAardvark
AlgebraicAardvark AlgebraicAardvark
  • 25-08-2021
You’re given that m=7 (slope is 7), so setup the slope-intercept form with that info: y = 7x + b.

Now you need to find b. Plug in (3,11) for x and y, x=3 and y=11.

11 = 7*3 + b

Notice the only variable left is b, so you’ll find b this way.

11 = 21 + b and then subtract 21 from both sides:

11 - 21 = b

-10 = b

Plug that back into the equation and you have y = 7x -10
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