The quadratic function y = –2(x + 4)2 – 3 with no real zeros is graphed.

determine the values of h and k that will change the function to one with two real zeros and a vertex of (3, 2). what are the zeros of the new function?

and

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Analyze the diagram below and complete the instructions that follow. how to find tan