Question

I cant seem to figure out these questions this is the equation for these questions.
fx=-.68(x-26.56)^2+116.13

Estimate the number of women per 1000 who give birth at age 24 according to your model.

At what age do the most women give birth (to the nearest tenths) per 1000? How many per 1000?
(If you chose a, h, and k so that your model “goes through” all the TI-plot-boxes of your points, it wasn’t likely that your vertex happened at , but it will be close.)

Answer 1

simple

Answer 2

first part, sub x= 24 into the formula and use your calculator

I assume x represents age

Answer 3

now , the second and thrid parts are based on parabola knowledge

Answer 4

ok

Answer 5

it is a concave down parabola , because it has a negative x^2 coefficent

Answer 6

so , the function will take its maxium value when the first term ( the negative term ) is zero

Answer 7

this occurs when x=26.56 , so this is the answer to the second, when do most give birth

Answer 8

when the negative term is zero all that is left is 116.13 , the constant term, this is the answer to the third part

Answer 9

for the first question I put the 24 in the equation and I graphed it on my calculator and its just a straight line

Answer 10

a flat line I hope, a horizontal line

Answer 11

yes

Answer 12

well.. thats the answer ?

a flat line is a just a number, a constant value

Answer 13

Thank you