Determine whether y varies directly with x. If so find the constant of variation k and write the equation.
x y
7 11
8 13
9 15
10 17
Help please!
For every unit of increase in x, there is a 2 unit increase in y:
k = 2
y = 2*x - 3
x y
7 11
8 13
9 15
10 17
Help please!
k = 2
y = 2*x - 3