alleryWhich of the following sets of ordered pairs represents a function?
A$\{(1,2),(1,4),(2,5)\}$
B$\{(1,2),(2,3),(3,4)\}$
C$\{(1,2),(1,3)\}$
D$\{(2,1),(2,2)\}$
Answer & Solution
Correct answer: B. $\{(1,2),(2,3),(3,4)\}$
Only {(1,2),(2,3),(3,4)} has each first-coordinate appearing once
the others repeat an input with different outputs.
Keep practising Unit 1A1: Relations, Functions and Graphs
Browse all Unit 1A1: Relations, Functions and Graphs questions for AP Calculus AB, or explore more Mathematics topics.
Related questions
What is the value of $\cos 60^{\circ}$?What is the value of $ in 30^{\circ}$?A wheel makes $360$ revolutions in one minute. Through how many radians does it turn in onSolve for y: 2y + 5/3 = 26/3 − ySolve for t: 5t − 3 = 3t − 5Which of the following is a linear equation in one variable?Solve for x: (x − 5)/3 = (x − 3)/5Using standard limits, evaluate $\lim_{x\to 0}\dfrac{a^x-1}{x}$ for $a>0$.