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A line has a slope of 4 and goes through the point (5,−2) What is the equation of this line in Standard Form?

User Juan Bosco
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Final answer:

To find the Standard Form of the equation of a line with a slope of 4 passing through the point (5, −2), you start with the slope-intercept form, plug in the given slope and point to find the y-intercept, and then rearrange the terms to get the Standard Form, which is −4x + y = −22.

Step-by-step explanation:

The question is asking how to find the equation of a line in Standard Form when given a slope and a point that the line passes through. The slope of the line is given as 4, and the line passes through the point (5, −2). To find the equation of the line in Standard Form, which is Ax + By = C, where A, B, and C are integers, we can follow these steps:

  1. Start with the slope-intercept form of the line equation, y = mx + b, where m is the slope and b is the y-intercept.
  2. Insert the given slope and the point into the equation to solve for b.
  3. Using the value of b, write the equation of the line with the given slope.
  4. Finally, rearrange the equation into Standard Form by moving all terms to one side of the equation.

For this particular problem, the steps would look like this:

  1. Begin with the slope-intercept form: y = 4x + b.
  2. Insert the point (5, −2) into the equation to find b: −2 = 4(5) + b. Solve for b to get b = −2 - 20 = −22.
  3. Write the line equation with the found y-intercept: y = 4x - 22.
  4. Rearrange to Standard Form: 4x - y = 22, and if we require A to be positive, we can multiply by −1 to get −4x + y = −22 as the final Standard Form equation.
User Najwa
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