# How do you evaluate the function with the given values of x: f(x)=4x x=2, x=1/2?

Put the values of x in the function, f(x) to get the values of y.

#### Explanation:

Given, $f \left(x\right) = 4 x$
Now, remember , always take the small values first.
When ${x}_{1} = \setminus \frac{1}{2}$ ,
${y}_{1} = f \left({x}_{1}\right) = 4 \setminus \times \setminus \frac{1}{2} = 2$

Again when ${x}_{2} = 2$
${y}_{2} = 4 \setminus \times 2 = 8$

Now put the two points ($\setminus \frac{1}{2}$,2) and $\left(2 , 8\right)$ in your graph paper.
Finally draw a straight line intersecting the points .

......And you've done it!