Question 786208
I like to make one column for the x values and another column for the y values, but you (or your teacher) may want each variable in one row instead.
When I make a table, it usually is a step towards making a graph, so my columns fit nicely.
Next, I pick a few values for x and calculate the corresponding y.
For example;
x = 2  means  y = -2(2)+(-5) = -4 + (-5) = -9
x = 0  means  y = -2(0)+(-5) = 0 + (-5) = -5
x = -3  means  y = -2(-3)+(-5) = 6 + (-5) = -1
Teachers have their preferences, and may say, for example, that they want 5 values for x in the table. (It is wise to listen and follow those directions).
I place the x values , in order from smallest to greatest on the column (or row) for the x values, and I place the y values opposite the corresponding x value.
 
My table plus the graph that goes with it is shwon below.
 
{{{drawing(300,300,-13,7,-13,7,
grid(0),
circle(-3,1,0.2),circle(-2,-1,0.2),circle(-1,-3,0.2),
circle(0,-5,0.2),circle(1,-7,0.2),circle(2,-9,0.2),
line(4,-13,-8,11),locate(-12,-1.5,x),locate(-9.3,-1.5,y),
line(-10.5,-1.2,-10.5,-12),line(-13,-2.8,-8,-2.8),
locate(-12.5,-3,-3),locate(-9.3,-3,1),
locate(-12.5,-4,-2),locate(-10,-4,-1),
locate(-12.5,-5,-1),locate(-10,-5,-3),
locate(-11.8,-6,0),locate(-10,-6,-5),
locate(-11.8,-7,1),locate(-10,-7,-7),
locate(-11.8,-8,2),locate(-10,-8,-9)
)}}} I usually do my graphs on "grid paper". I buy it, or sometimes I print pages with table space and graph space. There are such thing on the internet that you can get for free. Search for "grid paper" or "graph paper."