Question

Which two points are on the graph of F(e)=10-(the fraction) 2 over 5e ?

Choose exactly two answers that are correct.
(Points : 1)
(0, –10)
(0, 10)
(4, 0)
(25, 0)

Answer 1

@Karon86

Answer 2

@SolomonZelman

Answer 3

x is a variable. I am going to use x instead of e. e confuses me too much.

F(x) = 10 - (2/5x)

you would have to exclude A and B, because then if you plug in zero for e, you get an undefined value.

The function doesn't exist at x=0.

Answer 4

if the y-coordinate is 0, then solve for the x.
0 = 10 - (2/5x)
-10 = -(2/5x)
10 = (2/5x)
multiply times 5x on both sides
50x = 2
x=1/25

Answer 5

Are you sure you have all the options correctly, perhaps D is ( 1/25 , 0 ) ?

Answer 6

im sure. the 2/5 is a fraction though

Answer 7

wait x is not the denominator, right?

Answer 8

F(x) = 10 - (2/5)x like this?

Answer 9

then we would need to solve for without excluding A and B.

Answer 10

F(x) = 10 - (2/5)x
if x=0
F(x) = 10 - (2/5)(0)
F(x)=10

Answer 11

hold on

Answer 12

see when x=0, y=10, so B is on it

Answer 13

and there is 2 ansers from the choices i put

Answer 14

@SolomonZelman

Answer 15

are you there???

Answer 16

@thomaster

Answer 17

@iambatman