Cumulative Exam — Cumulative exam Answers

The variables A, B, and C represent polynomials where A = x + 1, B = x2 + 2x − 1, and C = 2x. What is AB + C in simplest form?

Which system of linear inequalities has the point (2, 1) in its solution set?

Gerri purchases a coupon book with discounts for her favorite coffee shop. Every coupon for the coffee shop offers the same discount. The table shows her total savings, y, based on the number of coupons, x, used from the book.

Which table shows no correlation?

A tree company charges a delivery fee for each tree purchased in addition to the cost of the tree. The delivery fee decreases as the number of trees purchased increases. The table below represents the total cost of x trees purchased, including delivery fees.

The table shows the total cost of purchasing x same-priced items and a catalog.

Which statements are true? Select three options.The line x = 0 is perpendicular to the line y = –3.All lines that are parallel to the y-axis are vertical lines.All lines that are perpendicular to the x-axis have a slope of 0.The equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2.The equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Jordan has a jar of quarters. When he has 60 quarters in the jar, the jar weighs 52 ounces. When there are 125 quarters in the jar, the jar weighs 65 ounces. What is the weight of the empty jar?

A mapping diagram shows a relation, using arrows, between input and output for the following ordered pairs: (negative 3, negative 4), (0, negative 4), (negative 2, 2), (negative 2, negative 1), (1, negative 3), (3, 7).

Which expression is equivalent to –6x3 • x • y2 • y6?

The inverse of the function f(x) = is shown. h(x) = 2x-What is the missing value?

Shannon graphed the system of equations.7x – 4y= –8y = x – 3What is the closest approximate solution to the system of equations?

Which graph shows the solution to the system of linear inequalities?2x – 3y <12y < –3

Which is the graph of linear inequality 6x + 2y > –10?

On a coordinate plane, a v-shaped line crosses the x-axis at (negative 2, 0), the y-axis at (0, negative 2), and the x-axis at (2, 0).

What is the solution (a, c) to this system of linear equations?2a – 3c = –6 a + 2c = 11

What is the solution to –2(8x – 4) < 2x + 5?

The 10th-grade class officers ordered t-shirts and sweatshirts to sell as a fundraiser. Each t-shirt weighed of a pound, and each sweatshirt weighed of a pound. The total weight of the contents of the box was pounds. Which equation written in standard form represents the number of t-shirts, t, and the number of sweatshirts, s, that were ordered?

Which expression is equivalent to 7a2b + 10a2b2 + 14a2b3?

What are the factors of 2x2 + 3x – 54? Select two options.2x – 92x – 62x + 6x – 6x + 6