A graph shows the points 4 comma ten, 6 comma fifteen, and 8 comma twenty with a line crossing all of them and going through the point zero comma zero
y equals one point five times x
y equals 2 times x
y equals two point five times x
y equals 5 times x

Question

A graph shows the points 4 comma ten, 6 comma fifteen, and 8 comma twenty with a line crossing all of them and going through the point zero comma zero
 y equals one point five times x
 y equals 2 times x
 y equals two point five times x
 y equals 5 times x

kamibug · Answer

Choose any two of the given points and use the slope formula. :)
$$m = \frac{ y_2 - y_1 }{ x_2 - x_1 }$$