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

1 Answer
Muhammad Arifur Rahman
Sep 18, 2015

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!

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