Points: (0, -2) and (20, 42)
Slope: 11/5
Equation: 5y = 11x-10 or as y = 2.2x-2.
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4X - 2X - 2 = - 42 preform the indicated variable subtraction ( 4X - 2X ) 2X - 2 = - 42 add 2 to each side 2X = - 40 divide both sides integers by 2 X = - 20 -------------check in original equation 4(- 20) - 2(- 20) - 2 = - 42 - 80 + 40 - 2 = - 42 - 42 = - 42 ---------------checks
2 because 22+42 = 20
20 percent of 42 = 8.4
86 - 42 = 44
If you mean points of (2, -3) and (4, 2) then the slope is 5/2 and the straight line equation is 2y = 5x-16