How do i write an equation in slope intercept form that passes through point (-7,6) and is perpendicular to line with slope -3/7

When two lines are perpendicular, their slopes are negative reciprocals.

That means that the slope of one line is  -1/(slope of the other line).

You have the slope of one line.  It's  -3/7 .

So the slope of any line perpendicular to that one is  7/3 .

Now you know the slope of the new line, and you know one point on it.

                     Slope  =  7/3
    Through the point  (-7, 6)

I'm pretty sure you know how to do the rest.
The trick was knowing how to find the slope of the new line.

Use photo math it it’s so good

Istg idk..if there all the same length there all the same number but use google