She ate 10 cookies
1/3 of 30 is 10
Well the y-intercept is +2
And the slope of the blue line is 1/2
So y=1/2x+2
Slope is rise/run (up then ((right)))
And the intercept is found where the line intercects the y line.
The graph is shown in the attached image.
Value of y = 30 and value of x = 30.3