Question

Identify the maximum or minimum value and the domain and range of the graph of the function y = 2(x – 3)^2 – 4

Answer 1

Can you identify the vertex?

Answer 2

The vertex is (3, -4) right

Answer 3

Thats right, if thats the vertex and the graph opens upwards, whats the minimum value?

Answer 4

-4?

Answer 5

Right

Answer 6

Domain of these functions is always all real numbers

Answer 7

Whats the range if the graph starts at the vertex (3,-4) and opens upwards

Answer 8

so that would make the range all real numbers =>-4 right

Answer 9

Not quite, the range is going to be \[[-4,\infty)\]

do you see why?

Answer 10

ok thank you

Answer 11

yeah i think so