#1**+2 **

First one - None are equal to x^7

A = x^(7/2)

B = x^(-5)

C =x^(2/7)

D = X^(-5)

Second one - Range = what y values are covered by the relation ??...these are B = {-5, -3, 2, 4 }

Third one - (2x - 1) (3x + 1) = 2x(3x + 1) - 1(3x + 1) = 6x^2 + 2x -3x - 1 = 6x^2 - x - 1

Fourth one - let's rearrange "C"

5x = y - 8 add 8 to both sides

5x + 8 = 0

Note that when x = 0, y = 8

This must be the correct one since the point (0,8) is in the table

Fifth one - 4 + x

_____

12

The only thing that would make this undefined is if the denominator could be made to = 0...however...nothing makes the denominator = 0.....so we can put any real number into the function for x .....so..... "A"

Last one - this isn't srtictly linear.....my best guess ?? B = 89...reason....the function always increases by more than 1 from year-to-year but never by as much as 10

CPhill
Apr 17, 2018

#2**+1 **

Tysm but for the first question the answer would be C but the thing is...idk how..

RainbowPanda
Apr 17, 2018