Question

A real root, satisfy f(r) =0, look at the graph of the functions. what you could satate about the real roots of f,g and h

1) f and h have a real root in commun
2) g has 4 real roots
3)f and g have a real root in commun
4) h has a real root

Answer 1

Use the given information/clue

Answer 2

A real root has to satisfy f(r) = 0

Answer 3

that means, the function has to become 0 at x=r

Answer 4

Look at each graph,
how many places do they cut x-axis ?

Answer 5

i know the roots are when there is no height i mean when the graph has an intercept in the x- coordinate

Answer 6

good :)
look at the graph for "h", it stays ABOVE the x axis and it never cuts the x axis right ?

Answer 7

but I've been looking for a while and non of the options are correct for me

Answer 8

i know that

Answer 9

so that means, "h" has NO real roots whatsoever

Answer 10

that means has no real roots

Answer 11

yup ! having that knowledge, which two options u can eliminate safely ?

Answer 12

it seems like the answer should be 3)

Answer 13

is the most closely to an answer

Answer 14

C is right

Answer 15

notice that "g" and "f" are intersecting eachother at same place on x-axis

Answer 16

^^thats the common root

Answer 17

altought, according to the graph, . ..

Answer 18

agree that graph is bit off

Answer 19

i mean, maybe they shoulnd't print out like this "imprecisely

Answer 20

Anyway, thanks a lot bro!

Answer 21

yes lol wait im seeing the graph from a different angle

Answer 22

that graph is so weird lol