Question

the table shows ordered pairs of the function y = 16 + 0.5x
Which ordered pair could be the missing values represented by (x, y)?
a) (0, 18)
b) (5, 19.5)
c) (8, 20)
d) (10, 21.5)

Answer 1

oh, they even gave you the function to start, much less work

Answer 2

Well, we know that there's already a 0 and a 10 in the x column, so we can eliminate those two answers from our choices, correct?

Answer 3

any x value that is between the previous and the next point

Answer 4

correct

Answer 5

to keep it increasing as you go down

Answer 6

so b and c are possible, put those x values into the function and see if the y value comes out right

Answer 7

So B?

Answer 8

The second I did was look and see if any of the possible y-values were directly half in between 16.5 and 21.

Answer 9

the one between those would be 19.5

Answer 10

And since 19.5 is in between both of them, I assumed that the answer was indeed B. Then I went ahead.

Answer 11

ThankYou !

Answer 12

try that point for B in the function

Answer 13

y=16 + 0.5*x

hmmm,

Answer 14

16 plus half of 5 is 18.5, no good

Answer 15

I got 19. So oops on that one.

Answer 16

the one other possible point should work

Answer 17

It doesn't.

Answer 18

16.5 + .5(8) = 20.5

Answer 19

(8,20)

y=16 + 0.5x

good

Answer 20

no 16.5, it is just 16

Answer 21

Then that screwed up all my calculations... wonderful @karolynxx I made a mistake.

Answer 22

The whole point to see that the order of the points in the table are arranged in increasing x values,

then test which points that may work, satisfy the equation

Answer 23

Thats Okay Thank you guys !

Answer 24

welcome, it is funny when you forget who asked the question.