Posted by Esther on Saturday, January 15, 2011 at 1:05am.
Plot in the same way as I described previously. In this case you might want to have two lines to calculate f(x). Find 1/4(x) in the first line and then add 12 in the next line.
Do I plot (1,4) and (0,12)? I'm sorry, that wasn't very clear to me. Can you be a little more specific, Please? Thank you so very much!
To plot on graph paper write a row of x values across the paper, say
-6,-4,-2, 0, 2, 4
then write below it 1/4(x) values, so
-1.5, -1, -0.5, 0, etc.
In the next line add 12 to the values in the line above
10.5, 11, 11.5, 12 etc.
Then plot these pairs on graph paper
(-6, 10.5), (-4, 11) etc.
check my maths though!