Question

State the range of this function: y=2x-7/2

Answer 1

the range is all reals

Answer 2

huh?

Answer 3

(-infinity, 0) (0, infinity)

Answer 4

what?

Answer 5

i dont get it

Answer 6

keep goig i'l try to figure it out

Answer 7

There are no restrictions to the range

Answer 8

um... need to find range is all i no

Answer 9

Okay, well you could always substitute 0 for the x value and work out the whole question from there. However, the answer I gave you earlier should be correct

Answer 10

what was the answer u gave earlier?

Answer 11

-3.5?

Answer 12

All real numbers. The domain would be all real numbers, and so should the range

Answer 13

what r real numbers?

Answer 14

Or, you could set y= 0 and work out the whole equation

Answer 15

then what would be my answer?

Answer 16

-3.5?

Answer 17

For instance,

(0= 2x - 7/ 2 ) x 2
0= 4x-14
14=4x
14/4=x

Answer 18

That's solving for x

Answer 19

range is always y right?

Answer 20

Substitution with x and zero would look like this:

y= 2(0) -7/2
y= -5/2

Answer 21

that is the range when solving the equation

Answer 22

actually it would be -3.5

Answer 23

Well, if you were trying to be precise, then yes. However, most math classes perfer that you leave it in the fractional form.

Answer 24

idk the range when soling equatyion. and i know

Answer 25

also it should be -2.5, not -3.5

Answer 26

how
?

Answer 27

2-7 = -5
-5 divided by 2 = -2.5

Answer 28

y=2(0)-7/2
y=0-7/2
y=-3.5

Answer 29

oh, I just got served! You are absolutely right my dear. Thanks for catching my mistake ;}

Answer 30

oh it's k np

Answer 31

So, do you have your answer?

Answer 32

-3.5?

Answer 33

yes

Answer 34

yup thx :D

Answer 35

No worries, glad I could help :)