Question

6=78+x29+=

Answer 1

Please, if you have learned the rules of priority of operations (PEMDAS), you need to apply them.
f(6)=1/2x+x-4 without parentheses is equivalent to
\(f(x)=\frac{1}{2}x+x-4\) which is likely NOT what you mean.
If you want
\(f(x)=\frac{1}{2x}+x-4\) you need to write
\(f(x)=1/(2x)+x-4\)
To evaluate f(6), replace by a "6" wherever the symbol x appears,
i.e.
f(6)=1/(2*6)+6-4

I'll let you complete the problem.

Answer 2

Please show your work how you got 14! :)

Answer 3

Did you use a calculator?

Answer 4

did you replace
f(6)=1/(2*6)+6-4=14
by
\(f(6)=1\div(2*6)+6-4=14\)
and put in all the parentheses as shown?

BTW, is it the first or second form of f(x) that you're supposed to do?

Answer 5

Do you have answer choices? I am not sure it is the first or second form of f(x) that you need. The best is if you could post an image of the question itself.

Answer 6

The problem is I am not sure if you have correctly reproduced the question. I need the original question (screen print, or scan of a paper question) to know.

Answer 7

That's a lot clearer.
Yes, your original post was correct, i.e.
f(x)=(1/2)*x+x-4

1/2 means 1 divided by 2. Use the \(\div\) key on your calculator.
the * means multiply, use the \(\times\) key on your calculator.

To find f(6), replace all occurrences of x by 6, and calculate the right hand side using the calculator:
f(x)=(1/2)*6+6-4
Remember to put in all the symbols

Answer 8

Yes, what did you get?

Answer 9

That is correct! Well done!

Answer 10

Sorry it took a while to confirm the original question, but you were correct initially! :)

Answer 11

Yes, that is correct but I hear it rather shaky. You are sure you understand what you said?

Answer 12

Recall that a standard parabola has the equation
y=x^2
and a more general parabola with a translation of the vertex is
y=(x-h)^2 +k
where (h,k) is the new vertex.
So substituting (x+3)=x-h, we get h=-3
and k=-1, so the vertex is at (-3,-1).
ok?

Answer 13

note:
h is the horizontal translation to the right (h is negative if to the left).
k is the vertical translation upwards (k is negative if downwards).

Answer 14

No. 2 is correct. but the coordinates are (2,-4),(5,-8).
Your answer was based on the correct coordinates.