Question

The quadratic functiob with vertex (1,3) is shown below find the domain and range

Answer 1

HI!!

Answer 2

the domain of a quadratic function is all real numbers

Answer 3

They only give a graph and the vertex

Answer 4

without the picture it is not clear what the second answer is, depends on whether it goes up or down

Answer 5

It goes down

Answer 6

Passes through points 0,1 and 2,1

Answer 7

How do you do that

Answer 8

draw tool belowo

Answer 9

is that what it looks like?

Answer 10

Yea

Answer 11

then the largest y can be is 3, can't be any bigger

Answer 12

so range is \((-\infty, 3]\) or \(y\leq 3\) depending on how you are supposed to write it

Answer 13

What about domain

Answer 14

i think i said that already right?

Answer 15

They didnt give me a quadratic function

Answer 16

unless you impose some sort of restriction , the domain of any quadratic function is all real numbers
\(\mathbb{R}\) or \((-\infty, \infty)\)

Answer 17

you only need the graph to find the highest point on it