Question 1129762
Slope-intercept form of a line:<br>

 y = mx + b <br>
where:
m = slope
b = y-intercept<br>

y = 3x + 3 clearly intercepts the y-axis at y=3 (just set x=0 to see this).   This is the point (0,3).   Pick any other value for x and then you will have a 2nd point:  say x=2,  y = 3(2) + 3 = 9.  So (2,9) is another point on the line.  Plot the two points then draw a straight line through them, that is  y = 3x+3.  

<br>

{{{ graph(300,300, -6,12,-6,12 , y=3x+3) }}}