What is the equation of the line that crosses the y-intercept at 12 and perpendicular to 7x + 6y = 17?
Let's find the slope to 7x + 6y = 17
The slope in the form Ax + By = C is -A / B
So....the slope is -7 / 6
And a perpendicular line to this will have negative reciprocal slope = 6/7 = m
And if this perpendicular line has a y intercept of 12....the point (0, 12) is on the line = (x1, y1)
So...the equation is
y = m ( x - x1) + y1 fill in what we know
y = (6/7) ( x - 0 ) + 12
y = (6/7)x + 12
Here's a graph : https://www.desmos.com/calculator/oyd29rauvm