For some real number b, the graph of the line y = 3 x + b passes through the point (7, −3). What is
its y-intercept?
well,
-3 = 3*7 + b
solve for b, and that is the y-intercept.
its y-intercept?
-3 = 3*7 + b
solve for b, and that is the y-intercept.