Greetings!
First thing when dealing with functions is to do f(x) = f(0), so simply change all x values to 0:
f(0) = ([tex]\frac{-1}{2}[/tex] x 0) + 3 , which means that 3 is the y- intercept coordinate when x is 0.
Which means that the line passes through point 0,3.
Now replace all the x values with another number such as 4:
f(4) = ([tex]\frac{-1}{2}[/tex] x 4) + 3
Which simplifies to 1,
So this means that the line passes through (4 , 1)
With these two coordinates you can draw the line!
Hope this helps!
