The graph of equation y = x + 3 is attached in the picture below.
Method of plotting:
Step 1
We will put the values of x and find the corresponding y values
for x = 0; y = 0 + 3 = 3 -----------(0,3)
for x = 2; y = 2 + 3 = 5 -----------(2,5)
for x = 4; y = 4 + 3 = 7 -----------(4,7)
for x = 6; y = 6+3 = 9 ------------(6,9)
for x = -2; y = -2 + 3 = 1 ----------(-2,1)
for x = -4; y = -4+3 = -1 -----------(-4,-1)
for x = -6; y = -6+3 = -3 ----------(-6,-3)
Step 2
Plot atleast 2 points from the above (x, y) coordinates on the graph and then draw a straight line through them as shown in the picture attached with: