Cumulative Exam Answers

The scatter plot shows the relationship between years of experience and hourly pay at one factory. Describe the relationship between experience and pay. a. Years of work experience usually decrease with hourly pay. b. Hourly pay usually increases with years of work experience. c. Hourly pay usually decreases with years of work experience. d. There is no correlation between hourly pay and years of work experience. Please select the best answer from the choices provided

The data given in the table below represents the increase in rainfall over a period of ten months. Which of the following scatter plots best represents the data? Months 1 2 3 4 5 6 7 8 9 10 Increase in Rainfall (cm) 1.1 1.3 1.8 2.6 3.7 4.5 5.7 7.1 8.9 12.3 a. c. b. d. Please select the best answer from the choices provided

Which is the best approximation for the solution of the system of equations?y = x + 1y = 3x – 2

The table below shows the measurements M1 and M2 taken by the same analyst. Draw a scatter plot of the data. M1 0.243 0.352 0.357 0.469 0.444 0.555 0.552 M2 0.245 0.348 0.361 0.470 0.439 0.560 0.548 a. c. b. d. Please select the best answer from the choices provided

The table below indicates the variation in the arm span of a person with respect to height. Draw a scatter plot for the data. Arm Span (cm) 156 160 165 170 170 173 177 184 188 194 196 200 Height (cm) 162 155 166 170 167 185 173 180 188 193 184 186 a. c. b. d. Please select the best answer from the choices provided

Which best describes the strength of the model with an r-value of –0.93?

Consider the equation v + 4 + v = 8. What is the resulting equation after the first step in the solution?

A rectangular bird feeder costs $18.00. A cylindrical bird feeder costs $24.00. The expected cost to keep the rectangular bird feeder filled is $3.00 per week. The expected cost the keep the cylindrical bird feeder filled is $2.00 per week. The equation below models the break-even point.18 + 3x = 24 + 2x What does x represent?

When graphing y = x2 – 14x + 24 and y = 20 – |x + 3|, which value would be the best minimum x- and minimum y-values for the viewing window so that all intercepts, minimums, maximums, and points of intersection are able to be seen as closely as possible?

The data set represents the number of snails that each person counted on a walk after a rainstorm.12, 13, 22, 16, 6, 10, 13, 14, 12What is the outlier of the data?

The table shows the height, in meters, of an object that is dropped as time passes until the object hits the ground.A line of best fit for the data is represented by h = –21.962x + 114.655. Which statement compares the line of best fit with the actual data given by the table?

Analyze the graph of the function f(x) to complete the statement.

Suppose there is a relationship between independent and dependent variables represented by a scatterplot. Which statement is correct?

On a coordinate plane, solid circles appear at the following points: (negative 3, negative 3), (negative 3, 2), (1, 1), (2, negative 2), (3, 4), (4, negative 2).

The box plot represents the number of math problems on the quizzes for an algebra course.What is the range of the data?

Which statements about the system are true? Select two options.y = x – 43y – x = –7The system has one solution. The system consists of parallel lines.Both lines have the same slope. Both lines have the same y–intercept.The equations represent the same line.

What is the value of p in the linear equation ?

The axis of symmetry for a quadratic equation can be found using the formula , where a and b are coefficients in the quadratic equation and x represents the values along a vertical line on the coordinate plane.What is the equation when solved for a?

Use properties to rewrite the given equation. Which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p? Select two options.2.3p – 10.1 = 6.4p – 42.3p – 10.1 = 6.49p – 4230p – 1010 = 650p – 400 – p23p – 101 = 65p – 40 – p2.3p – 14.1 = 6.4p – 4

On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function to convert this temperature from degrees Fahrenheit to degrees Celsius. What does C(76.1) represent?

A graph shows the horizontal axis numbered 1 to 5 and the vertical axis numbered 1 to 5. Points and a line show a downward trend.

Lukas graphed the system of equations shown.2x + 3y = 2y = x + 3What is the solution to the system of equations?

A system of equations has infinitely many solutions. If 2y – 4x = 6 is one of the equations, which could be the other equation?

A line of best fit is drawn for the set of points shown on the graph.

Solve the equation.–x + 8 + 3x = x – 6