Question

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

Answer 1

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

Explanation:

Given, `f(x)=4x`
Now, remember , always take the small values first.
When `x_1=\frac{1}{2}` ,
`y_1=f(x_1)=4\times\frac{1}{2}=2`

Again when `x_2=2`
`y_2=4\times 2=8`

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

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