Answer & Explanation:i have 20 question multiple choice in precalculus Question 1 (4 points) Use the slope and y-intercept to graph the linear function.G(x) = 3xQuestion 1 options:A) B) C) D) SaveQuestion 2 (4 points) Solve the inequality.x2 + 6x ? 0Question 2 options:A) [-6, 0]B) (-?, 0] or [6, ?)C) (-?, -6] or [0, ?)D) [0, 6]SaveQuestion 3 (4 points) Use the figure to solve the inequality.f(x) < 0Question 3 options:A) {x|x ? -5 or x ? 3}; (-?, -5] or [3, ?)B) {x|-5 < x < 3}; (-5, 3)C) {x|-5 ? x ? 3}; [-5, 3]D) {x|x < -5 or x > 3}; (-?, -5) or (3, ?)SaveQuestion 4 (4 points) Use the slope and y-intercept to graph the linear function.p(x) = -x 3Question 4 options:A) B) C) D) SaveQuestion 5 (4 points) Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 8Question 5 options:A) maximum; -8B) minimum; -8C) minimum; 0D) maximum; 0SaveQuestion 6 (4 points) Determine the slope and y-intercept of the function.p(x) = -x + 4Question 6 options:A) m = -1; b = 4B) m = 0; b = 4 C) m =1; b = 4D) m = -1; b =4 SaveQuestion 7 (4 points) Use the slope and y-intercept to graph the linear function.F(x) = 6Question 7 options:A) B) C) D) SaveQuestion 8 (4 points) Solve the inequality.x2 2x 15 ? 0Question 8 options:A) (-?, -3] or [5, ?)B) [-3, 5]C) [5, ?)D) (-?, -3]SaveQuestion 9 (4 points) Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?Question 9 options:A) $194,045B) $388,090C) $1,552,360D) $776,180SaveQuestion 10 (4 points) Solve the inequality.x2 + 3x 4 > 0Question 10 options:A) (-?, -4)B) (-4, 1)C) (1, ?)D) (-?, -4) or (1, ?)SaveQuestion 11 (4 points) Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -x2 + 4xQuestion 11 options:A) vertex (2, -4)intercept (0, -8)B) vertex (-2, 4)inter
cepts (0, 0), (- 4, 0)C) vertex (2, 4)intercepts (0, 0), (4, 0)D) vertex (-2, -4)intercept (0, -8)SaveQuestion 12 (4 points) Solve the problem.The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.Question 12 options:A) $741B) $559C) $438D) $620SaveQuestion 13 (4 points) Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -x2 2x + 1Question 13 options:A) minimum; 1B) minimum; 2C) maximum; 2D) maximum; 1SaveQuestion 14 (4 points) Determine the quadratic function whose graph is given.||Question 14 options:A) f(x) = -x2 4x 5B) f(x) = -x2 + 4x + 5C) f(x) = x2 8x + 5D) f(x) = x2 + 4x + 5SaveQuestion 15 (4 points) Determine the slope and y-intercept of the function.G(x) = -6xQuestion 15 options:A) m = 0; b = -6B) m = -6; b = 0C) m = ; b = 0D) m = 6; b = 0SaveQuestion 16 (4 points) Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 4xQuestion 16 options:A) (-4, 2); x = -4B) (4, -2); x = 4C) (-2, 4); x = -2D) (2, -4); x = 2SaveQuestion 17 (4 points) Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 + 6xQuestion 17 options:A) (9, -3); x = 9B) (-9, 3); x = -9C) (3, 9); x = 3D) (-3, -9); x = -3SaveQuestion 18 (4 points) Find the vertex and axis of symmetry of the graph of the function.f(x) = -2×2 20xQuestion 18 options:A) (5, 50); x = 5B) (5, 0); x = 5C) (-5, 0); x = -5D) (-5, 50); x = -5SaveQuestion 19 (4 points) Determine the quadratic function whose graph is given.Vertex: (- 1, 4)y-intercept: (0, 3)Question 19 options:A) f(x) = x2 4x + 3B) f(x) = -x2 2x + 3C) f(x) = -x2 2x 3D) f(x) = -x2 4x + 3SaveQuestion 20 (4 points) Match the graph to one of the listed functions. Question 20 options:A) f(x) = x2 12xB) f(x) = x2 12C) f(x) = -x2 12D) f(x) = -x2 12xSave