Question

Graph of function f of x equals 2 to the power of negative x. Graph of function g of x equals 5 to the power of x. Graph of p of x is a line segment connecting points negative 1, negative 3 and 2, 12.

Which function has all real numbers as its domain?

Only f(x)
Both g(x) and p(x)
Both f(x) and g(x)
Only p(x)

Answer 1

@ali2x2

Answer 2

@henrry123

Answer 3

will give medal for right answer

Answer 4

What do you think?

Can you plug -2 in p(x)?

Answer 5

yeah u can ? i think

Answer 6

ok what is p(-2)?

Answer 7

-2p

Answer 8

Domain is basically "group" of x-coordinates.

Do p(x) have value in x=-2 ?

Answer 9

p(x) is function, not variable

Answer 10

i am like very bad at math lol but i think it dont

Answer 11

let's just say you have h(x) = x

h(x) has domain of all real number because you can plug any values in h(x)

Answer 12

okay

Answer 13

You can see that p(x) only goes from about -1 to 2 in x-coordinate, right?

Answer 14

yes i do