Answer:
y = 2x + 19
Explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given the line has a slope m = 2 , then
y = 2x + c ← is the partial equation
to find c , substitute the point (- 9, 1 ) into the partial equation
1 = 2(- 9) + c = - 18 + c ( add 18 to both sides )
19 = c
y = 2x + 19 ← equation of line