Question

Is this function correct? according to the graph?

Answer 1

f(x) = 4x + 3

Answer 2

You know the answer to that. That function is what kind of line?

Answer 3

Rational?

Answer 4

Nope. Rational functions are of the form: \[f(x) ={x^2 \over 2x^2 - 10x + 6}\]

Answer 5

absolute value?

Answer 6

Nope. Absolute value functions look like this:\[f(x) = |x|\]

What is I said "graph y = 2x + 5"? You would go up 5 on the y-axis, then count up 2 then right 1. Then repeat.
This would create a straight line.

Answer 7

oh..

Answer 8

I'll give you another hint. The function in the graph is an exponential function. \[f(x) = 10^x\]

Does f(x)= 4x + 3 look like f(x) = 10^x?

Answer 9

quadratic?

Answer 10

The answer is no.

The equation f(x) = 4x + 3 is a straight line. http://www.wolframalpha.com/input/?i=4x+%2B+3

The graph you attached represents an exponential function. http://www.wolframalpha.com/input/?i=10%5Ex