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Slope = coefficient of x (in standard form of equation) = 2
Intercept = constant in standard form of equation) = -3
4 equals 2x2, 6 equals 2x3
If x = -7, then x3 = -343 so that 2x3 = -686 y = 2 then 15 y = 30 So 2x3 + 15y = -686 + 30 = -656
5-2x3=9
2X3 2 + 2 + 2 = 6 3 + 3 = 6 ^ thats how ^
x = -7, y = 2 ⇒ 2x3 + 15y = 2 x (-7)3 + 15 x 2 = 2 x (-343) + 15 x 2 = -656