jacquelineventura561 jacquelineventura561
  • 12-05-2019
  • Mathematics
contestada

what is the y-intercept ofa line that has a slope of -3 and passes through (0,-7)​

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jimrgrant1 jimrgrant1
  • 12-05-2019

Answer:

y = - 7

Step-by-step explanation:

The y- intercept is the point on the y- axis that the line passes through.

The line passes through the y- axis at (0, - 7), hence

the y- intercept is - 7

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itmye84 itmye84
  • 12-05-2019

Slope-intercept form: y = mx + b   [m is the slope, b is the y-intercept or the y value when x = 0 ---> (0 , y)]

Since you know m = -3, you can plug that into the equation

y = mx + b

y = -3x + b       To find b, plug in the point they gave you into x and y, but since x = 0, your y-intercept is -7

Answer Link

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