1 (1 point) Solve the problem. Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 747. Find a linear function S(t), which fits this data, and which expresses score as a function of time. Question 1 options: a) S(t) = -3.175t + 524.75 b) S(t) = 2.8575t + 528.75 c) S(t) = 2.8575t - 528.75 d) S(t) = 3.175t + 524.75 Save Question 2 (1 point) Solve the problem. A cellular phone company determines a monthly bill from the x number of minutes of usage. The amount of the bill, B(x), (in dollars) is given by the function: Determine the bill of a customer who uses her cellular phone 27.00 minutes during the month. Question 2 options: a) $32.98 b) $813.24 c) $27.00 d) $2.97 Save Question 3 (1 point) State whether the graph is or is not that of a function. Question 3 options: a) Yes b) No Save Question 4 (1 point) Decide whether or not the equation defines y as a function of x. y= Question 4 options: a) Yes b) No Save Question 5 (1 point) Decide whether or not the arrow diagram defines a function. Domain Range Question 5 options: a) Yes b) No Save Question 6 (1 point) Evaluate the function. If y = f(x), find f(-2). Question 6 options: a) -1 b) 4 c) -4 d) 1 Save Question 7 (1 point) Find the domain and range for the function. Question 7 options: a) D: [-3, 0]; R: [-2, 2] b) D: [0, 3]; R: (-, 2] c) D: (-, 2]; R: [0, 3] d) D: [-2, 2]; R: [-3, 0] Save Question 8 (1 point) Write the equation of the line whose graph is shown. Question 8 options: a) y= x+4 b) y = 4x - 7 c) y= x-7 d) y = -4x - 7 Save Question 9 (1 point) Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form. (11, -5); m = Question 9 options: a) b) c) d) y=y= x+ x- y=- x+ y=- x+ Save Question 10 (1 point) Write the equation of the line using the information given about its graph. Rate of change 5, y = -4 when x = 0 Question 10 options: a) y = -4x - 5 b) y = 5x + 5 c) y = 5x + 4 d) y = 5x - 4 Save Question 11 (1 point) Write the slope-intercept form of the equation for the line passing through the given pair of points. (5, 1) and (-1, 8) Question 11 options: a) b) c) d) y= x+ y=- x+ y=- x+ y= x+ Save Question 12 (1 point) Write the equation of the line with the given conditions. passing through (-1, -7) and perpendicular to the line with equation 4x + 5y = 31 Question 12 options: a) b) c) d) y=- x- y=- x- y= x- y= x+ Save Question 13 (1 point) Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation. y = -6 Question 13 options: x: none; y: -6 a) x: -6; y: none b) c) x: -6; y: none x: none; y: -6 d) Save Question 14 (1 point) Find the slope of the line (if it exists) and the y-intercept (if it exists). y = 4x - 1.5 Question 14 options: a) Slope -4, y-intercept (0, -1.5) b) Slope -1.5, y-intercept (0, 4) c) Slope 4, y-intercept (0, -1.5) d) Slope 4, y-intercept (0, 1.5) Save Question 15 (1 point) Find the slope of the line. Question 15 options: a) -2 b) 2 c) -3 d) 3 Save Question 16 (1 point) Graph the function with a graphing utility. y = x2 + 1 Question 16 options: a) b) c) d) Save Question 17 (1 point) Graph the equation. y=1 Question 17 options: a) b) c) d) Save Question 18 (1 point) Solve the problem. The percent p of high school students who participate in sports at a public high school can be modeled by 10p - 22x =208,where x is the number of years after 2010. Interpret the slope as a rate of change if x is the independent variable. Question 18 options: a) The percent of high school students who participate in sports at this school is increasing by 22 percent per year. b) The percent of high school students who participate in sports at this school is increasing by 2.2 percent per year. c) The percent of high school students who participate in sports at this school is decreasing by 2.2 percent per year. d) The percent of high school students who participate in sports at this school is decreasing by 22 percent per year