Answer:
y = -x + 7
Explanation:
Given equation: x + y = 3
x + y = 3
y = -x + 3
Comparing it to y = mx + c where m is slope and c is the y intercept.
- Here the slope is -1 and y-intercept 3.
Parallel Lines have the same slope so slope that passes (-1,8) will be -1.
Equation: provided (x1, y1) = (-1, 8) and slope = -1
y - y1 = m(x - x1)
y - 8 = -1(x - (-1))
y - 8 = -1(x + 1)
y - 8 = -x -1
y = -x - 1 + 8
y = -x + 7