Question

I don't know how to find the domain and range for
y=4x-3
and identify any if the equation define functions

Answer 1

D: all real values of x

Answer 2

wooooow. meme to the rescue.

Answer 3

LOL

Answer 4

What u mean by all real values of x how did u know that?

Answer 5

The domain and range of any line (that is not vertical or horizontal) is the set of all real numbers.

Answer 6

Well, for straight lines domain is all real values of x

Answer 7

Then how about if the question will be
y=-2(x-3)sequerd+4

Answer 8

what's sequerd ?

Answer 9

sorry miss spelled I mean squared

Answer 10

\[\textrm{Domain is the set of all real numbers}\]

\[\textrm{Range is }(-\infty,4]\]

Answer 11

But I want to know how to do it not to just know the answer

Answer 12

How come it's x^4 when it's (x-3)^2

Answer 13

I don't know how to do it!!!!
I'm waiting for someone to reply

Answer 14

The domain of any quadratic is the set of all real numbers.

Answer 15

The range of the quadratic \[\large y=a(x-h)^2+k\] is \[\large (-\infty, k]\] if \[\large a <0\]

--------------------------

The range of the quadratic \[\large y=a(x-h)^2+k\] is \[\large [k,\infty)\] if \[\large a >0\]

Answer 16

In this case, a=-2 and k=4, so you pick the first option described above.

Answer 17

Oh, ok thank u for the help.
now I got it