Cumulative Exam — Cumulative exam Answers

Consider the quadratic function. f(p) = p2 – 8p – 5What are the values of the coefficients and the constant in the function?

Which are points on the graph of y = 1.5 + ⌈x⌉? Select three options (–4.5, –2.5)(–0.8, 0.5)(7.9, 9.5)(4.5, 6)(1.3, 3.5)

Mr. Walker is looking at the fundraiser totals for the last five years.

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

Shayna enlarged a square photo by adding 10 inches to each side so it could be seen on a large poster. The area of the enlarged photo is 256 square inches. In the equation (x + 10)2 = 256, x represents the side measure of the original square photo.

A square piece of paper has an area of x2 square units. A rectangular strip with a width of 2 units and a length of x units is cut off of the square piece of paper. The remaining piece of paper has an area of 120 square units.

The two-way table represents data from a survey asking teachers whether they teach English, math, or both. Which is the joint relative frequency for teachers who teach math and not English? Round the answer to the nearest percent.

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

What is f(x) = 7x2 + 42x written in vertex form?

A rectangle with an area of x2 – 4x – 12 square units is represented by the model.

What is the vertex of the graph of f(x) = |x – 13| + 11?

A road is made in such a way that the center of the road is higher off the ground than the sides of the road, in order to allow rainwater to drain. A cross-section of the road can be represented on a graph using the function f(x) = (x – 16)(x + 16), where x represents the distance from the center of the road, in feet. Rounded to the nearest tenth, what is the maximum height of the road, in feet?

What does a residual value of 1.3 mean when referring to the line of best fit of a data set?

Priya is playing a game where she earns online badges for scoring higher than the mean score on a level. After the tenth level, she scores 3,540 points, which is 2 standard deviations above the mean score of 3,110 points.

The data in the table represent the height of an object over time.

The first few steps in deriving the quadratic formula are shown.

Which relationships could have a negative correlation? Select three options.number of hours worked and free timespeed of a car and minimum stopping distancethe speed of a train and the length of time to reach the destinationadult’s head circumference and agea tadpole’s age and the length of it’s tail

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

The graph represents the data cost for monthly Internet service for a cell phone.

Which represents the polynomial written in standard form?4m – 2m4 – 6m2 + 9