Question

Match the y-coordinate with the given x-coordinate for the equation y = log2x.

Answer 1

Answer:

(8,3) (4,2) (2,1) (1,0) (1/2, -1)

Step-by-step explanation:

I just did this and the side with the blanks is the y-coordinates. It was confusing at first not gonna lie. Those are the coordinates that the answers make.

Hope this helps future students :)

Answer 2

Logs are exponents so the log base 2 of 2 raised to the power n is just n.

$y = \log_2 x$

1. $\log_2 8 = \log_2 2^3 = 3 \quad$ nope, not -1

2. $\log_2 4 = \log_2 2^2 = 2 \quad$ nope, not 1

3. $\log_2 2 = 1 \quad$ nope, not 3

4. $\log_2 1 = \log_2 2^0 = 0 \quad$ YES, matches, CHOOSE ME!

5. $\log_2 \frac 1 2 = \log_2 2^{-1} = -1 \quad$ nope, not 2

Answer: choice 4