Answer : y = 9x - 2
The given point is (1,7)
Let x1 = 1 and y1 = 7
Slope = 9
The slope intercept form of equation is y = mx + b
Where m = slope and b = intercept
For a given point we have
(y - y1) = m(x - x1)
(y - 7) = 9(x - 1)
Open the parentheses
y - 7 = 9x - 9
y = 9x - 9 + 7
y = 9x - 2
The slope - intercept form is y = 9x - 2