Answer:
18
Step-by-step explanation:
1.80 x 10 = 18.0
:)
Answer: C
Step-by-step explanation:
A function only exists if each x-value has only one possible y-value.
C is the only function because each x-value has only one y-value.
The other answer choices have x-values that have multiple y-values. In answer choice A, it has (2,9) and (2,8). In answer choice B, the set has (1, 0) and (1,2). And in answer D, it has (1,3) and (1,2)
I think they have no points in common because A or B aren't part of CD. AC would share a point with CD. The point they would share is C. THE ANSWER IS B.
Just plug in 2 for x since f(x) = f(2)
f(2)=2^2+1
f(2)=4+1
f(2)=5