Cumulative Exam — Cumulative exam Answers

A line passes through the points (9, 30) and (18, 30). Which statement is true about the line?

Which property should Remus use to solve the equation below?

Rodney models the factorization of a trinomial with algebra tiles as shown.

The graph shown below represents a ladder leaning against a wall. The bottom of the ladder is 4 feet from the wall, and the top of the ladder reaches 20 feet above the ground. What is the slope of the graph?

The variables X, Y, and Z represent polynomials where X = a, Y = 3a – 5, and Z = a2 + 2. What is X2Y – Z in simplest form?

Which expression is equivalent to ?

The table shows the number of blue marbles and red marbles that four friends have collected. Blue and Red Marbles BlueRedJasmine1210Aaron32Lucian1010Gretchen142Which person has the highest ratio of blue to red marbles?

What is the slope of the line that passes through the points (–20, 18) and (30, 14)?

Which is the best estimate of to the nearest hundredth?

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

Simplify the expression –3(x + 3)2 – 3 + 3x. What is the simplified expression in standard form?

What is the factored form of x2 – 6x – 16?

Several friends bought flowers to make table centerpieces. Write the ratios of purple flowers to white flowers for each friend.Bouquets Colors Purple FlowersWhite FlowersRowan82Marcia101Jillian102Lulua183Who has the largest ratio of purple to white flowers?

Dorrian graphed the distance, y, traveled by 2 bikes in x seconds. BikesIf the two bikes are racing a distance of 100 feet, which bike will win the race?

The monomial 36x4 is a perfect square. What is the square root of 36x4?

Which expression is equivalent to ?

Takehiko brought grapes to school. He gave 15 of his grapes to his friends. If he is left with 45 grapes, how many did he bring to school?

Which expression is a difference of squares with a factor of 5x − 8?

The tile along the edge of a triangular community pool needs to be replaced.

Vladas believes that an equation with a squared term is never a function of x. Which equation can be used to show Vladas that his hypothesis is incorrect?