Question

ple

Answer 1

@mathstudent55 @retirEEd @welshfella

Answer 2

@zepdrix @imqwerty

Answer 3

@Sheraz12345

Answer 4

The -3 changes the amplitude of the function, not the period, so the period of the given function is the same as the period of the base function \(y = \cos x\)

Answer 5

its 2pi I've got it never mind

Answer 6

can i still have help with another though?

Answer 7

correct

Answer 8

not sure about this one^

Answer 9

I have to go, but I'll be back in 15 min.

Answer 10

oh ok thank!

Answer 11

Very quickly.
A polynomial function with zeros "a", "b" and "c" is

y = (x - a)(x - b)(x - c)

Replace a, b, and c with your zeros and multiply it out.

Answer 12

Notice the form is x - a, x - b, x - c.
Be careful with the signs.

Answer 13

gtg
will be back soon

Answer 14

ok thanks!

Answer 15

anyone help?

Answer 16

I'm back

Answer 17

Didn't you understand my explanation?

Answer 18

Start with

\(y =(x - \color{red}{a})(x - \color{red}{b})(x - \color{red}c) \)

Now replace a, b, and c with the given zeros.

\(y = (x - \color{red}{6})(x - \color{red}{(-5)})(x - \color{red}2)\)

Now simplify the double negative of the middle factor.
Then multiply the three binomials together.