15 pts graph the line: x - y = -1

Use the intercept method for graphing lines:

x-intercept: let y = 0 and find x: x - 0 = -1. Then x = -1, and the x-intercept is (-1,0).

y-intercept: let x = 0 and find y: 0 - y = -1. Then y = 1, and the x-intercept is (0,1).

Plot (0,1) and (-1,0) and draw a straight line thru these two points.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)