The y-axis is the line that is vertical in a graph. Four units to the right of the y-axis means that it will be four units above the x-axis, the horizontal line, which means that your x coordinate is 4, your y coordinate can be whatever you want.
Ex. (4,1) (4,8)
The first poster is not an accurate representation of the painting, but the second poster is an accurate representation because the ratio between the first and original lengths did not equal the ratio between the first and original widths but the second poster's ratios were equal.
-5.25 -(-7.5) (Conversion to decimals cuz' it's easier for me to type)
-5.25 + 7.5 (Subtracting a negative is like Adding a Positive)
7.5 - 5.25 (Rearranging)
2.25 (Subtracting)
2 1/4 Final Answer.
To do it w/o converting to decimals, make sure the fractions have the same denominator.
