Answer:
y=-¾x-3
Explanation:
first label the two points....
let's say the first point is A 
and the second point is B 
so you know that y=0 on the x-axis
and x=0 on the y axis
and the graph is kinda drawn to scale so you can definitely find the A & B coordinates 
A coordinates is (-4,0) 
B coordinates is (0,-3)
so as you can see ...this is a straight line 
and the equation of the straight line is y=mx+c 
since we have the coordinates of both points let's calculate the gradient
y2-y1%x2-x1
and you will get a gradient of -¾ 
now substitute one of the points into the equation to find c
I will use point A(-4,0)
0=-¾(-4)+c
0=3+c
(make c the subject of the formula)
c=-3 
therefore the equation is y=-¾x-3