(_ , _) means (X , Y)
(25 , ) means
X = 25 then you need find the value of Y from the equation .
[tex]y = \frac{1}{5} x - 8 \\ y = (\frac{1}{5} \times 25) - 8 \\ y = 5 - 8 = - 3[/tex]
so the first answer is (25,-3)
..............
( , -8) means
Y = -8 then you need to find the value of X from the equation .
[tex]y = \frac{1}{5} x - 8 \\ - 8 = \frac{1}{5} x - 8 \\ 0 = \frac{1}{5} x \\ x = 0[/tex]
so the second answer is ( 0 , -8 )
hope this would help you
