What is the value of the function at x = 3?

Following are the calculation to the points:
Given:
x= 3
To find:
points=?
Solution:
Using slop formula:
[tex]\to y= mx+c[/tex]
Then [tex]x = 3[/tex], the function's value is [tex]4[/tex].
Its slope is [tex]\frac{1}{5}[/tex] and the y-intercept is [tex]3 \frac{2}{5}[/tex].
Therefore, in slope-intercept form (with the unknown value of x)
It is
[tex]\to f(x)=\frac{1}{5} + 3 \frac{2}{5}\\\\\to f(x)=\frac{1}{5} + \frac{17}{5}\\\\\to f(x)=\frac{1+17}{5} \\\\\to f(x)=\frac{18}{5} \\\\[/tex].
Therefore the final answer is "[tex]\frac{18}{5}[/tex]".
Learn more:
brainly.com/question/8494183