Domain: {1,2,3,5,7}
Range: {4,9,7,12}
Answer:
Step-by-step explanation:
tan 17=h/18
h=18 tan 17
tan 38=(h+x)/18
h+x=18 tan 38
h+x-h=18 tan 38-18 tan 17
x=18(tan 38-tan 17)≈8.56
I know that this is an old question, but I'll add my input for future reference. The graph shown above is B) This is a function (as it passes the vertical line test), but it is NOT a one-to-one, as it fails the horizontal line test.