X = 6, y = 8, z = 3
3(8) + (6)² = 24 + 36 = 60
= 20
<h3>
Answer: (0,5)</h3>
This is because the x coordinate is 0. For any y intercept, the x coordinate is always 0 as this indicates the point is on the y axis.
Contrast this with something like (9,0) and we see that y = 0 indicating this point is an x intercept (it is on the x axis).
First, let's find "k" the constant of variation:
z= k.x.y (since z varies jointly with x and y)
60 =k.(2).(3) → 60 = 6k and k =10, So z = 10x.y
z= 10(4)(9) = 10(36) and z = 360
First one= C, even
Second one= A, 1,2
