Question

i give metals

Answer 1

Which of the following represents the graph of f(x) = 2x + 3

Answer 2

@freckles

Answer 3

@RAINIAR @mathwizz2015

Answer 4

Are you sure your function is as you wrote it, f(x) = 2x+3? Either that or you've posted the wrong images, as the pictures do not show a line, which is what your function represents.

Answer 5

no everything id correct its f(x)= 2^x+3 @DisplayError

Answer 6

\[f(x) = 2^x+3\]
or
\[f(x) = 2^{x+3}\]
?

Answer 7

the first one

Answer 8

When all of the given choices are so vastly different, you can usually just check one point and get your answer. The easiest point to check is at x=0. Plug that into the function:
\[f(0) = 2^0 +3 = 4\]
(Remember that anything raised to the 0th power is equal to 1!)
Now looking at your choices, is there a graph that satisfies such a point (when x = 0, y = 4)?

Answer 9

so it would be D then the last one

Answer 10

Yep! The last image that you posted.

Answer 11

@DisplayError can you help me with 2 more

Answer 12

I'll try my best. Don't ask to ask a question, just ask away.

Answer 13

What transformation has changed the parent function f(x) = log3x to its new appearance shown in the graph below?





f(x + 4) + 2
f(x –2) –2
f(x + 2) + 2
f(x –4) –2

Answer 14

f(x+4)+2
f(x-2)-2
f(x+2)+2
f(x-4)-2

@DisplayError

Answer 15

Is your function
\[\log_3 x\]
or
\[\log(3x)\]
?

Answer 16

Assuming your function is
\[\log(3x)\]
I would say it is the first choice.

If you plug in the given point (-1,3), the first choice returns a y value that is closest to 3. Also, if you solve for x by setting each function equal to 0, you would find that the first choice gives you the x value that is closest to x = -4 (which is what the picture you provided shows).