Please urgent answers.

k = 1/2

Step-by-step explanation:

g(x) = 3 - kx   g^-1(4) = -2

y = 3 - kx

x = 3 - ky

x - 3 = -ky

(x-3) / (-k) = y

(x-3) / (-k) = (g^-1(x))

4-3 / (-k) = -2

1 / (-k) = -2

1/k = 2

1 = 2k

1/2 = k

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

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step-by-step explanation:

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