direct variation

Question 2

What is direct variation

Answer 2

you can write a formula for direct variation function such as y=kx

or y/x=k where k = not 0,

x represents input values and y represents output values. the formula y/x=k says that except for (0,0) the ratio of all output-input pairs equals the constant k, the constant of variation.

Question 4

constant of variation

Answer 4

the ratio of all output-put pairs equals the constant **k, the constant of variation **