Three roots of the polynomial equation x ^ 4 - 4x ^ 3 - 2x ^ 2 + 12x + 9 = 0 are 3, - 1 and -1. Explain why the fourth root must be a real number. Find the fourth root.

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.