Which is an arithmetic sequence? a) 9, 12, 16, b) 9, 11, 13, c) 1, 5, 9, 13, d) 1 2 , 1 4 , 1 6 , 1 8

What is the number 321,000,000 in scientific notation? also what is the number? ?

What is the slope of the line shown below?

20 points 1. your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph. 2. taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1