reflect the point (2,-4) over the y- axis.

a. (2,4)

b. (-4,2)

,4)

,-4)

which answer shows a reflection across the y-axis?

look at the ! ?

1. c

2. b

3. a

4. d

!
really need this!
respond as fast as you !

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95