Answer:
Explanation:
so we need slope intercept form, which is y=mx+b ... just memorize this, you'll need it many many times
next we are told to find a line perpendicular to y=
x+10
recall that the reciprocal of the slope will give us a perpendicular line with a sign change also.
then the slope m is:
m = -8
and we are given the point P(x1,y1) = ( -1,1)
now use the point-slope formula to find the equation to the line in the slope intercept form.
y-y1 = m(x-x1)
plug in our given info.
y-1 = (-8)(x-(-1))
y-1 = -8(x+1)
y-1= -8x -8
y = -8x -8+1
y=-8x-7
there is your slope intercept form of the equation :)