Question

wrtie a quadratic function f(x) for the area of a rectangle with a length of x + 5 and a width of 3x - 7

Answer 1

well do you know what the formula for an area of a rectangle is?

Answer 2

...no

Answer 3

okay so the area of a rectangle is width times length

Answer 4

so... so far we have f(x)=(x+5)(3x-7)

Answer 5

right?

Answer 6

yes so then that would be the answer right? because I just had to write an equation?

Answer 7

you had to write a quadratic function

Answer 8

that is not a quadratic function

Answer 9

ohhhh okay sorry my bad so whats the next step?

Answer 10

so you have to make it in the form of ax^2+bx+c

Answer 11

how the heck does someone even do that?? where do we get those numbers?

Answer 12

hahahaha!!! okay ill help you

Answer 13

i will do the work... snap a pic and you can figure out the answer from there

Answer 14

so... just give me a sec

Answer 15

lol okay thank you so much! im really not good with math at all!

Answer 16

dont you worry! isnt this what this site is for?

Answer 17

yes exactly! so wait did you say you needed a pic of it or are you taking the picture?

Answer 18

i am taking the picture XD

Answer 19

okay alright were going to get this figured out eventually

Answer 20

Here

Answer 21

so the answer would be 3x^2 + 8x - 35?

Answer 22

yayyyyy!!!!! You got it!!!

Answer 23

enjoy the triumphal feeling!

Answer 24

Its awesome XD

Answer 25

oh my gosh thank you so much!!!!!!!!!!!!

Answer 26

you are welcome! just tag or message me when you need help again!

Answer 27

okay ill probably need some more help later so youll probably be hearing from me again lol

Answer 28

thats totally fine!

Answer 29

the exponential function g(t)=500(1-3^-t) describes how long it takes for a population of 500 catfish to migrate from a holding pond to a new pond. What is the meaning of g(0)? what are the restraints on the types of numbers used for g(t)? describe how the graph of the function changes with time.