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What is the equation of a line with a slope of 5 that passes through the point at (-2, -7)?

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-5
y=
-7
-3
17
x+
33
لیا
3
-17
5

1 Answer

7 votes

Slope-Intercept Form

This is one way we can represent a linear relationship:


y=mx+b

  • m = slope
  • b = y-intercept

Solution

We're given:

  • m = 5
  • Passes through (-2,-7)

Plug 5 into y = mx + b:


y=5x+b

To solve for the y-intercept, plug in the given point and solve for b:


y=5x+b\\(-7)=5(-2)+b\\(-7)=-10+b\\b=3

Thus, our final equation is
y=5x+3.

User Joanie
by
7.3k points