Tell me if I'm right or wrong... (pls within 20 minutes) I will mark you brainlist!

Pls! does anybody know a shortcut for answering these types of questions in the future?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.