Which of the following is an even function

f(x) = 7 is a even function

Solution:

Given that we have to find the even function

A function is even if and only if f(–x) = f(x)

Steps to follow:

Replace x with -x and compare the result to f(x). If f(-x) = f(x), the function is even.

If f(-x) = - f(x), the function is odd.

If f(-x) ≠ f(x) and f(-x) ≠ -f(x), the function is neither even nor odd.

Substitute x = -x in above function

Thus

So this is not a even function

f(x) = 8x

Substitute x = -x in above function

f(-x) = 8(-x) = -8x

Thus

So this is not a even function

Substitute x = -x in above function

Thus

So this is not a even function

f(x) = 7

f(-x) = 7

Thus f(-x) = f(x)

Thus it is a even function

it would more likely be bald eagle because its has more in the box so about 75%.

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt