Question

WILL GIVE 5 STARS

The table shows the outputs, y, for different inputs, x:

Input (x) 1 3 5 7
Output (y) 8 6 5 4

Part A: Do the data in this table represent a function? Justify your answer. (3 points)

Part B: Compare the data in the table with the relation f(x) = 4x + 8. Which relation has a greater value when x = 3? (2 points)

Part C: Using the relation in Part B, what is the value of x if f(x) = 76? (5 points)

Answer 1

Below

Explanation:

A) Yes it is a function....there is only ONE value of 'y' for each value of 'x'

B) when x = 3 from table = y = 6

From relation y = 4(3) + 8 = 20

C) f(x) = 76

76 = 4x+ 8

4x = 68

x = 17