Equation of a line intersecting at - 3 on x axis and 3 y axis

Step-by-step explanation:

hello:

an equation is : y=ax+b

a line intersecting at - 3 on x : when x=-3 y=0 means : 0=a (-3) + b ... (*)

a line intersecting at 3 on y axis : when x=0 y=3 means : 3 = a (0) + b ... (**)

by (**) : b=3 put this value in (*) : 0 = - 3a+3 so a = 1

an equation is : y = x+3