Podstawiasz dziedzine pod x.
czyli :
dla -4
y = 3 * (-4) - 2
y = -14
dla -3
y = -11
dla -2
y=-8
dla -1
y=-5
dla 2
y=4
dla 4
y = 10
f(x) = 3x-2
D = {-4,-3,-2,-1,2,4}
f(-4) = 3*(-4) - 2 = -14
f(-3) = 3*(-3) - 2 = -11
f(-2) = 3*(-2) - 2 = -8
f(-1) = 3*(-1) - 2 = -5
f(2) = 3*2 - 2 = 4
f(4) = 3*4 - 2 = 10
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Podstawiasz dziedzine pod x.
czyli :
dla -4
y = 3 * (-4) - 2
y = -14
dla -3
y = -11
dla -2
y=-8
dla -1
y=-5
dla 2
y=4
dla 4
y = 10
f(x) = 3x-2
D = {-4,-3,-2,-1,2,4}
f(-4) = 3*(-4) - 2 = -14
f(-3) = 3*(-3) - 2 = -11
f(-2) = 3*(-2) - 2 = -8
f(-1) = 3*(-1) - 2 = -5
f(2) = 3*2 - 2 = 4
f(4) = 3*4 - 2 = 10