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Dylan B. 2 Answers By Expert Tutors B = y - mx (-5,5) --> x=-5 and y = 5 with slope m=-1 SO then B = 5 - (-1)(-5) = 5 - 5 = 0 y = mx +b = (-1)x + 0 = -x Final equation is y = -x
Hi Dylan, You can use graphing to solve this problem by drawing the line on a coordinate plane. Begin by plotting the point (-5, 5) and count the slope of -1 (count one unit down, and one to the right) then plot your second point here. Draw your line to reveal your y-intercept then use the slope-intercept form y=mx+b to write your equation. Equation is y= - x The y-intercept is at (0,0) ... m (slope) = -1, b (y-intercept) = 0 |