We can cancel out the y^4 on the top and bottom of the fraction.
this gives us...
(x^3)/3
290 * 7 = 1400 + 630 = 2,030
2030 - 7 = 2,023
You would divide 973 by 2 and your answer would be 486.5
0 is the slope of a line that is parallel to the line of X= -3