How to Find the Equation of a Line Given a Slope and a Point?

To find the equation of a line with a given slope and a specific point, we can use the point-slope form of the equation of a line. The point-slope form is expressed as:

y – y1 = m(x – x1)

Where:

  • m is the slope of the line.
  • (x1, y1) is the given point that the line passes through.

In this problem, we are given:

  • Slope (m) = 4
  • Point (x1, y1) = (6, 11)

Now we will substitute the slope and the point into the point-slope formula:

y – 11 = 4(x – 6)

Next, we can simplify this equation to find the slope-intercept form of the line (y = mx + b):

  1. Distribute the slope (4) on the right side:
  2.     y – 11 = 4x – 24

  3. Add 11 to both sides to isolate y:
  4.     y = 4x – 24 + 11

        y = 4x – 13

So, the equation of the line with a slope of 4 that passes through the point (6, 11) is:

y = 4x – 13

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