The table that follows shows the relationship between the boiling temperature of water (°F) and the altitude (per thousand feet):

Question

Boiling Point of Water
Altitude
(1000 ft.) Temperature
(°F)
8 197.6
4.5 203.9
3 206.6
2.5 207.5

Gemma and Tessa need to find the rate of change for the data in the previous table. A. Gemma’s first steps are +6.3/-3.5 Which two ordered pairs did Gemma use to set up her

Tessa’s first steps are +0.9/-0.5 Which two ordered pairs did Tessa use to set up her ratio?

Answer 1

Gemma: the first and second ordered pairs
Tessa: the third and fourth ordered pairs

I think you can observe them easily.

hope this helps :3

Answer 2

Yeah, I don't get this :/