A group of friends are going to see a movie. The admission cost is $8 per person. The table below represents the number of friends and the total cost. Movie Costs

Number of Friends, (x)

2

3

4

5

Total Cost in Dollars, (y)

Which set of ordered pairs can be written from the table?

(2, 10), (3, 11), (4, 12), (5, 13)
(2, 16), (3, 24), (4, 32), (5, 40)
(10, 2), (11, 3), (12, 4), (13, 5)
(16, 2), (24, 3), (32, 4), (40, 5)

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

What is the slope of the line shown below?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6