Part 1: Determine if each of the following relations is a function. If it isn't, explain why not.1. (1, 2), (2, 3), (3, 4), (4, 5)2. (0, 2), (1, 4), (0, 6), (1, 8)3. (-1, 7), (2, 7), (5, 7), (7, 7)

246

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

your answer is c. 97 (don't delete this again)

step-by-step explanation:

54/3 is 18 so 18 is your answer