Find the equation of a line whose slope = -3 and y-intercept =-1.
3x−y+1=0
3x+y+1=0
y−3x+1=0
y+3x=0
m = -3, c =-1
Equation of line is
y=mx+c
y=−3x−1
Find the equation of a line whose: y-intercept = 2 and slope = 3.