How does the graph of y=a(x-h)+k change if the value of h is doubled

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?