Question

Find the slope of the line 4x+5y=28

Answer 1

m=-0.8

Answer 2

Write the equation of the line that satisfies the given condition: contains the point (2,6) and is perpendicular to the line 4x-5y=7.
First, put the equation in slope intercept form:highlight%28y=mx%2Bb%29, where m=slope and b=y-intercept.
4x-5y=7
-4x%2B4x-5y=-4x%2B7
-5y=-4x%2B7
-5y%2F-5y=%28-4%2F-5%29x-7%2F5
y=%284%2F5%29x-7%2F5
y=highlight%284%2F5%29x-7%2F5 The slope of their line is 4/5.