Given a quadratic function in vertex form: f(x)= a(x-h)2 + k

For what values of does a VERTICAL STRETCH take place? (2 points)
For what values of does a VERTICAL COMPRESSION take place?(2 points)
How does a VERTICAL STRETCH compare to a HORIZONTAL COMPRESSION?(2 points)
For what values of does a REFLECTION across the x-axis take place?(2 points)

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

When you answer this can you explain