Question

State the domain and range.

3x - 4y = -7

Answer 1

The domain is the set of all admissible values for x.

Do you see any reason to exclude a value from x from 3x - 4y = -7

Answer 2

By exlude, I mean values of x that create a 0 in the denominator or maybe a negative number under the radical sign But, you have none of that here.

Answer 3

So, the domain is the set of ? numbers.

Answer 4

@genny7

Answer 5

So I have to subtract x from both sides? @Directrix

Answer 6

You can if you like. But, there is no need. Let's look at the graph.

Answer 7

Here is the graph of your problem. Attached.

Answer 8

There are no holes in it, no excluded values of x.

Answer 9

So, all values of x are accepted into the domain.

Answer 10

Well, let me just say that the Domain is the set of all Real Numbers and

ask you to find the Range. @genny7

You'll get better at this once you work through more examples.

Answer 11

The Range of the function is the set of all possible values of y.

Answer 12

@genny7 Are you still here?

Answer 13

So the range would be 4 and the domain 3?

Answer 14

No. >>> Do you have answer options?

Answer 15

Nope I dont

Answer 16

The domain is the set of Real Numbers.
The range is the set of Real Numbers.
---------------------------
@genny7

Please go here to read about how to find domains and ranges of functions:

http://www.intmath.com/functions-and-graphs/2a-domain-and-range.php

Answer 17

Ok