Subtract a from both sides of the equation.
b=−a+14
Answer:
C
Step-by-step explanation:
A and B are not straight lines, so they are not linear functions.
C and D are straight lines, so they are linear. However, D fails the vertical line test, so it is not a function.
Um... It's none.
Did you took a picture of the wrong question.
The answer of that question is the top second one.