Question

What is the equation of the line described below written in slope-intercept form? the line passing through point (-1, 5) and parallel to the line whose equation is x + y = 10

Answer 1

Given the line is parallel to x + y = 10, the two lines have the same slope. The slope of x + y = 10 is -1. The line should pass through point (-1, 5). Using the point-slope formula for a line: (y-y1) = m(x-x1) (y-5) = -(x+1) x+y = 4