C957 Unit 4 Module 4 Quiz 2022/2023 with complete Solution

Johan is leading a team of technicians to replace his company's PCs. The function P(d) models the number of PCs to be replaced, where d is the number of days since the project started. [ The graph has days on the hori ...

Johan is leading a team of technicians to replace his company's PCs. The function P(d) models the number of PCs to be replaced, where d is the number of days since the project started. [ The graph has days on the horizontal axis and Number of P Cs on the vertical axis. A line is drawn from (0, 350) to (23, 0).] Which statement is correct? A) The point P(20) =/= 52 implies that there are still 52 more PCs to replace 20 days into the project. B) The point P(20) =/= 21 implies that there are 21 more PCs to replace 20 days into the project . C) The point P(52) =/= 20 implies that there are 52 more PCs to replace 20 days into the project . D) The point P(20) =/= 52 implies that there are 20 more PCs to replace 52 days into the project . - ANSWER The point P(20) =/= 52 implies that there are still 52 more PCs to replace 20 days into the project. The equation for the best-fit line is y = 3.15x + 9.6. Consider the following graph. [The graph has months on the horizontal axis and monthly sales in thousands of dollars on the vertical axis. A line is drawn, which begins at (0, 10) and ends through (12.3, 47). A series of data points labeled from A to J, closely follow the line except E, which is is plotted at (5, 2).]© 2018 WGU, Powered by GeoGebra How would the line change if the outlier were removed? A) The line would move up. B) The line would tilt downward from left to right. C) The line would move down. D) The line would become horizontal. - ANSWER The line would move up. The following graph shows the profit function for a company that sells blenders for $39.95 each. [The graph has number of items sold on the horizontal axis and profit in dollars on the vertical axis. A line is drawn which begins at the fourth quadrant, slopes up through (107, negative 2000) and (157, 0) and ends through (185, 1100).] How many blenders must be sold for the company to make $1,000? A) 180 blenders B) 150 blenders C) 133 blenders D) 183 blenders - ANSWER 183 blenders Johan is leading a team of technicians to replace his company's PCs. In the following graph, the function P(d) models the number of PCs to be replaced, where d is the number of days since the project started. [ The graph has days on the horizontal axis and Number of P Cs on the vertical axis. A line is drawn from (0, 350) to (23, 0).] How many days into the project would there still be 100 PCs to be replaced? A) The point (100, 6.8) implies that 100 more PCs need to be replaced after 16.8 days. B) The point (6.8, 100) implies that 100 more PCs need to be replaced after 6.8 days. C) The point (100, 16.8) implies that 100 more PCs need to be replaced after 16.8 days. D) The point (16.8, 100) implies that 100 more PCs need to be replaced after 16.8 days. - ANSWER The point (16.8, 100) implies that 100 more PCs need to be replaced after 16.8 days. Consider the following scatterplot. [A scatterplot shows data points plotted between x equals 0 and 10 and y equals 2 and 8.] What can be said about the points of data given? A) The vertical coordinates of the points do not change as the points move from left to right. B) The points trend up and to the right. C) The horizontal coordinates of the points do not change as the points move from top to bottom. D) The points trend down and to the right. - ANSWER The points trend down and to the right. The following graph shows some data about the price of traffic tickets and the driving speed when the ticket was issued. [The horizontal axis represents speed in miles per hour and the vertical axis represents ticket price in dollars. The graph shows a line, which is drawn from (19, 0) and ends through (102, 420). Data points labeled from A to G are plotted around the line. Text above the line reads: r equals 0.97.] Predict the value of a ticket when driving at 75 miles per hour. A) $285 B) $255 C) $295 D) $250 - ANSWER $285