Question

Help please :)

Answer 1

Domain is the breadth of the function on the graph... in other words the possible values that the x variable can have.

Range is like a mountain range, the possible values up and down.

So with this curve, the domain is where the curve is on the X axis
Range: where it goes on the y axis

Answer 2

Can you elaborate?

Answer 3

Ok, for the domain. If you look at the curve, where does it start and continue and then stop with regards to the X values?
Looks like it starts at -5 and then ends at 5. The line is continuous from -5 to 5 so we say the domain is [-5,5]

Can you do this for the range and the y axis?

Answer 4

5?

Answer 5

What is the lowest y value on the curve, what is the highest?

Answer 6

-9 is the lowest and -4 highest?

Answer 7

yes so the interval notation would be
[-9,-4]
because we are including both -9 and -4. If you didn't include those points but approached them then it would be (-9,-4), but thats not the case here.

Answer 8

so domain is [-5,5] and range is [-9,-4]?

Answer 9

yes. Domain is the x (independent variable) Range is the y (dependent variable)

Answer 10

thank you