36x-9y = 15
-9y = -36x+15
y = 4x-5/3 in slope intercept form
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Rewriting the equation 3x + y = 15 gives y = 15 - 3xThe slope of this and any parallel line is the x multiple, which in this case is -3
3X + 5Y = 155Y = -3X + 15Y = (-3/5)X + 3The slope of this line is -3/5.The slope of a line perpendicular to it is 5/3.
y = -1.2x-3 in slope intercept form
The slope of the line that passes through the points (3,15) and (5,9), is -3; use the formula change in Y-axis/change in X-axis.
y = slope × x + intercept → y = -0.5x + 15 → y = -0.5 × 8 + 15 = -4 + 15 = 11