Question

Is the relation a function?
{(14,15),(5,7),(3,10),(11,1),(5,8)}
a. yes
b. no

Answer 1

no

Answer 2

NO, it has same input (x=5). ans: b. remember vertical line test for a function. if your X same, the test line will meet 2 values of Y for the same X. but with the 1 input X, you get 2 values of Y it's a function, as in parabola(again..use vertical line test).

Answer 3

thanks guys

Answer 4

sorry I meant, parabola, 2 different input X will get 1 value of Y.