Answer:
The slope-intercept form is y = 7x + 3
Step-by-step explanation:
Remember: Perpendicular lines slope are negative reciprocals of each other.
y = -1/7x + 4.
Now you know the slope of the given line is -1/7.
So the slope of the perp line is 7/1 = 7 .
Use the given point (-1, -4) and the perp slope = 7 into y =mx + b and solve for "b".
y = mx + b
-4 = 7(-1) + b
-4 = -7 + b
-4 + 7 = b
3 = b
The slope-intercept form is y = 7x + 3
