Question

Which expression has a value that is equivalent to 5n+13 when n= -5

A.4n+8
b.2n+2
c.n2+13
D.n+8

Answer 1

4n + 8

Explanation:

Answer 2

Option A is correct.

4n + 8 expression which has a value that is equivalent to 5n+13 when n = -5

Explanation:

Given the expression:
`5n + 13`

If n = -5

then, by substituting in given expression we get;

`5(-5)+13 = -25+13 = -12`

Option A:

4n + 8

Substitute the value of n = -5 we have;

`4(-5) + 8 = -20 + 8 = -12`

Option B:

2n + 2

then;

2(-5) + 2 = -10 + 2 = -8

Option C :

`n^2+13`

then;

`(-5)^2+13 = 25 + 13 = 38`

Option D:

n + 8

then;

-5 + 8 = 3

Therefore, only option A has expression which has a value that is equivalent to 5n+13 when n = -5