Match the y-coordinate with the given x-coordinate for the equation y = log2x. 1. 8 -1 2. 4 1 3. 2 3 4. 1 0 5. 1/2 2,

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

1. nope, not -1

2. nope, not 1

3. nope, not 3

4. YES, matches, CHOOSE ME!

5. nope, not 2

choice 4

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2