Need Math help please?

Question

The coordinates of A, B, C, and D are 8, -9, 17, and -14, respectively. Determine AB, BC, CD, and AD.

easy points!

Answer 1

Make a number line as so:

-15, -14,-13, ...0, 1, 2, 3...17

Now place the letter A over the number 8, B over -9, C over 17, and D over -14. Now, you just count the difference between AB, BC, CD, and AD. For instance, AB would be from -9 to 8, which equals 9+8= 17. BC is the difference from -9 to 17. So, BC=9+17=26. I'll let you try the other two.

Answer 2

just put them together like ab would be (8,-9) it's pretty simple

Answer 3

AB= I8-(-9)I=17

BC=I-9-17I=I-26I= 26

CD=I17-(-14)I=31

AD=I8-(-14)I=22

Answer 4

Assume these are points on a line....The distance between them is what you need to find.

The distance is simply the difference x2-x1 or delta x

Since distance is always positive we use the absolute value:

d=|x2-x1|