(08.05 MC) Alma wants to prove to her parents that listening to music while she studies for her tests will help her get better grades. She decides to ask 15 of her friends if they listen to music while they study for tests and what their grades are. She finds that her friends who have high grades also listen to music while they study for tests. She tells her parents that she has proven that listening to music while studying for tests will cause her grades to improve. What mistake has Alma made?

(Slope-Intercept Form MC)A student is measuring the length of an icicle, y, every hour, x. The icicle is currently 13 inches long and is melting at a rate of 0.4 inches per hour. Find and interpret the slope for this relationship.

(Slope-Intercept Form MC)Which equation represents the graph?

(Slope-Intercept Form HC)A writer counted the number of pages she wrote in one year. The graph shows the relationship between the number of short stories written, x, and the number of pages written, y.Part A: Calculate the slope of the linear equation shown in the graph. Show all necessary work. (3 points)Part B: What does the slope mean for the relationship between the number of pages written and the number of short stories written? (3 points)Part C: Interpret the y-intercept in the situation. (3 points)Part D: Write the equation of the line shown on the graph in slope-intercept form. (3 points)

(Experimental Probability MC)An experiment is conducted with a bag of marbles containing 5 red and 2 blue marbles. The results of a marble being drawn twice and replaced 100 times are shown in the table. Outcome Frequency Red, Red 19 Red, Blue 32 Blue, Blue 21 Blue, Red 28 Find P(1 red).

(Slope-Intercept Form HC)A violinist counted the number of practices he had during a semester. The graph shows the relationship between the number of performances, x, and the number of practices, y.Part A: Calculate the slope of the linear equation shown in the graph. Show all necessary work. (3 points)Part B: What does the slope mean for the relationship between the number of practices and the number of performances? (3 points)Part C: Interpret the y-intercept in the situation. (3 points)Part D: Write the equation of the line shown on the graph in slope-intercept form. (3 points)

(08.07 LC) Use the Perfect Square Trinomial and provide the first step to calculating 422 without a calculator.

(05.07 HC) A teacher is assessing the correlation between the number of hours spent studying and the average score on a music test. The table shows the data: Number of hours spent studying(x) 0 0.5 1 1.5 2 2.5 3 3.5 4 Score on music test(y) 60 62 64 66 68 70 72 74 76 Part A: Is there any correlation between the number of hours students spent studying and the score on the music test? Justify your answer. (4 points) Part B: Write a function that best fits the data. (3 points) Part C: What does the slope and y-intercept of the plot indicate? (3 points)

(07.06 MC) What is the quotient (2×3 − 3×2 − 14x + 15) ÷ (x − 3)?

(08.07 MC) Which of the graphs below correctly solves for x in the equation −x2 − 3x − 1 = −x − 4?