Find the vertex of each parabola. SEE EXAMPLE 1 16. y=-x2 + 6x + 30
17. y = 3x2 + 12x - 5
I
Find the vertex and y-intercept of the
quadratic function, and use them to graph the
function. SEE EXAMPLES 1 AND 2
18. y = -x2 + 6x – 8 19. y = x2 – 8x + 11
20. y = 3x2 + 18x + 10 21. y=-2x2 – 12x - 5
22. A rocket is launched into the air. The path of
the rocket is modeled by the equation
y=-10x2 + 160x – 100. What is the maximum
height reached by the rocket, in feet?

Find the x-intercepts of the parabola withvertex (1,1) and y-intercept (0,-3).write your answer in this form: (x1,if necessary, round to the nearest hundredth.

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.