HELP ASAP PLEASE Which of the following statements are true about the function y = x + 2?

I. The function is a direct variation.
II. The function does not go through the origin.
III. The constant of variation is 2.
IV. Y is 4, when x is 2.
I and III
I, II, III, and IV
I, III, and IV
II and IV

What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.