Question 761648
A linear equation can be expressed in the form y = mx + c where m is the slope and c is the y intercept (the value of y when x = 0, or the point where the line intersects the y axis)

Here, we know the slope m(3) and one instance of x and y (-2,-2). We don't know c.

By substituting for m,x and y we have

-2 = -2*3 + c

or {{{c = 4}}}

So the line's equation is {{{y = 3x + 4}}} or {{{3x - y = -4}}}

See the graph below.

*[invoke describe_linear_equation 3, -1, -4]