If k(x) = 5x – 6, which expression is equivalent to (k + k)(4)?. . 5(4 + 4) – 6. 5(5(4) – 6) – 6. 54 – 6 + 54 – 6. 5(4) – 6 + 5(4) – 6
k(x) = 5x-6
(k+k)(x) = k(x) + k(x) = 5x-6 +5x-6
just plug in x = 4,
(k+k)(4) = 5(4) -6 + 5(4) -6
thats your answer, the last option.
The equivalent expression to k(x) = 5x – 6 is 5(4) - 6 + 5(4) - 6.
Equivalent expressions are similar expressions in which the values of the expressions on the left-hand side are equal and similar to the expressions on the right-hand side.
From the given information:
If k(x) = 5x - 6; we are to find the expressions that is equivalent to (k + k)(4)
i.e.
k(x) = 5x - 6
From, (k + k)(4), we have:
= (k+k)(x)
= k(x) + k(x)
= 5x-6 + 5x-6
we will replace the value of x with 4
(k+k)(4) = 5(4) - 6 + 5(4) - 6
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