The figure below shows a line graph and two shaded triangles that are similar: Which statement about the slope of the line is true?

It is fraction negative 1 over 3 throughout the line.

It is −3 throughout the line.

The slope from point O to point A is fraction 1 over 3 times the slope of the line from point A to point B.

The slope from point O to point A is 3 times the slope of the line from point A to point B.

The product of two negative rational numbers is always zero sometimes zero never zero

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared