If x = 0 then y=b, if A is the point where y intercepts y-axis, the coordinates of A(0,b) If you want to shift the graph up by 2 units, then you have to add 2 units to b In our case original b=7, =so to shift it up, b becomes 7+2=9 and the new function will be y=2x + 9
Since the second line is parallel to the first, it will have the same slope. The y-intercept of the new line is 4 (because of the coordinates given) so the equation of Lynda's second cut is y = 1/4x + 4 which is choice C
