Question

=

Answer 1

OK, so first, what does Δy mean?

Answer 2

No idea :(

Answer 3

Δ just means "change in". So Δy means "change in y".

Answer 4

Okay!

Answer 5

So maybe we would subtract?

Answer 6

Yep. It's really just asking for the difference in y values, and to find a difference, you just subtract.

Answer 7

Each of the two given points has an x coordinate and a y coordinate. The y coordinate is the 2nd number within the parentheses representing the point. Here your two y coordinates are -5 and 10. Find the DIFFERENCE between these two values. The result should enable you to choose the correct response.

Answer 8

Cool! So -3--5=2 and 0-10=-10

Answer 9

Oh wait, I get what you mean! Just the y's with the y's and the x's with the x's

Answer 10

-5--10=5
-3-0=-3

Answer 11

5/3=1.66?

Answer 12

Not quite.. That -5 is problematic. You can subtract 10 from -5 OR subtract -5 from 10 to get the difference. Try it!

Answer 13

Woah! COOL!

Answer 14

So it's 15!

Answer 15

In other words, subtracting a negative number from a positive one is equivalent to ADDING

Answer 16

Cool! Thank you :)

Answer 17

So, subtracting -5 from 10 is equivalent to 10 - (-5). What does that amount to?

Answer 18

:)

Answer 19

15 :D
Thanks!