SOLUTION: Find an equation for the line that goes through the point (5,4) and is perpendicular to the line satisfying -5x-5y=-47 what is the actual formula for y as a function of x?

Hi

the standard slope-intercept form for an equation of a line y = mx + b  

where m is the slope and b the y-intercept. 

for ex:    -5x - 5y = -47:  |  y = -x + 47/5   

Slope m = -(1/1)  LIne perpendicular to it wil have a slope m = 1 (negative reciprocal)

 New Line:

 y = 1*x + b  |using ordered pair Pt(5,4) to solve for b

 4 = 5 + b

-1 = b

y = x -1