Question

Write the equation of a line that includes the point (1,5) and has a slope of 3

in standard form

Answer 1

The standard form would be -3x + y = 8

Explanation:

To find this, start with point-slope form and then solve for the constant.

y - y1 = m(x - x1)

y - 5 = 3(x - 1)

y - 5 = 3x - 3

-3x + y - 5 = 3

-3x + y = 8