Which statement is correct about the values of x and y in the following equation?
7x+xy = xy+21
a) the equation is true for all ordered pairs (x, y)
b) there are no (x, y) pairs for which this equation is true.
c) for each value of x, there is one and only one value of y that makes the equation true.
d) for each value of y, there is one and only value of x that makes the equation true.

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

other answer is correct. i had used the radius of the radius somehow. a website:

12.4, 12.387, 12.26, 12.252, 6.241, 6.2, 6.015, 6.009, 1.411, 1.2, 1.056, 1.007, 0.31,   0.13, 0.5, 0.04

step-by-step explanation:

ur welcome : )