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?

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

step-by-step explanation:

bob the banana

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft