Hello from MrBillDoesMath!
Answer:
Choice A is not on the line given by f(x)
Discussion:
Let f(x) = y = (5/2)x + 6
Point A: (2,7)
Is 7 = (5/2)(2) + 6 ?
7 = 5 + 6 ? No, so A is not on the line
Point B: (4,16)
Is 16 = (5/2)(4) + 6 ?
16 = 10 + 6 ? Yes, so B is on the line
Point C: (-2,1)
Is 1 = (5/2)(-2) + 6 ?
1 = -5 + 6 ? Yes, so C is on the line
Thank you,
MrB
