If g(x) = x2 + 3, find g(4).
11

19

16

8

Question

If g(x) = x2 + 3, find g(4). 
 11

19

16

8

jhannybean · Answer

Just plug in 4 into your equation.

jhannybean · Answer

$$g(4) = (4)^2 +3$$

calculusxy · Answer

I have a confusion with the equation that Jhannybean had put and the information that I know. 

What I know is that you have to multiply 4x2. But in the equation that Jhannybean has put, it states that you have to figure out what is second to the fourth power.

Which one is right? 

If Jhannybean is correct then the answer is 19.
If I am correct then the answer is 11.

jhannybean · Answer

People usually make that mistake when writing exponents out of laziness. Happens all the time. Copy pasting questions.

calculusxy · Answer

So am I right or wrong?

jhannybean · Answer

I believe the question states $x^2 +3$

jhannybean · Answer

There will be no response because you stated the answer.

calculusxy · Answer

Ok. We will wait but I need to have the confusion clear. 

Since it is g(x) then it is (4)2 meaning 4x2.

jhannybean · Answer

don't you think they would have written 2x instead of x2 then?

calculusxy · Answer

Since you have to replace the x with the 4.

calculusxy · Answer

Yes Jhannybean you are right. So for the confusion that I have made. So @_litoswave_  the answer is 19. When it is x2 it means to be squared. I made sure by asking someone.

jhannybean · Answer

watch out for other equations of the sort and tell me what you think when people put x2 instead of x^2. You'll see what i mean.

anonymous · Answer

sooooo its 19 ?

jhannybean · Answer

Solve it.

calculusxy · Answer

Yes

jhannybean · Answer

what is 16 +3....

calculusxy · Answer

I mean it is 19.

calculusxy · Answer

@Jhannybean Sorry for the confusion.