1. Given the function f(x) = 8x - 7x + 3, find f(-2). 2. Find the...

 

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1. Given the function f(x) = 8x² - 7x + 3, find f(-2). 2. Find the domain of the function in interval notation: 5x+3 4x-1 3. Given f(x) = 2x-5 and g(x) = x² + 3, find f(g(x)), in simplest form. 4. Molly rents a car to travel. The rental agency charges a flat rate of $100 per day plus $.25 per mile. Write a linear equation that represents the total cost for Molly to travel m miles. If Molly has $500, how many miles can she travel? 5. Factor using the quadratic formula: x² – 7x − 6. Express your answer in radical form. (2 points) 6. Factor and solve to find the coordinates of the x-intercepts: 5x² + 14x − 3 = 0. (4 points) = : - 1x² + 8x + 6, where x is the 7. A javelin is thrown in the air. Its height is given by h(x) horizontal distance, in feet, from the point at which the javelin is thrown. 20 a. How high is the javelin when it was thrown? b. What is the maximum height of the javelin? (2 points) (2 points) c. How far from the thrower does the javelin strike the ground? Round to the nearest tenth of a foot. (4 points) 1. Given the function f(x) = 8x² - 7x + 3, find f(-2). 2. Find the domain of the function in interval notation: 5x+3 4x-1 3. Given f(x) = 2x-5 and g(x) = x² + 3, find f(g(x)), in simplest form. 4. Molly rents a car to travel. The rental agency charges a flat rate of $100 per day plus $.25 per mile. Write a linear equation that represents the total cost for Molly to travel m miles. If Molly has $500, how many miles can she travel? 5. Factor using the quadratic formula: x² – 7x − 6. Express your answer in radical form. (2 points) 6. Factor and solve to find the coordinates of the x-intercepts: 5x² + 14x − 3 = 0. (4 points) = : - 1x² + 8x + 6, where x is the 7. A javelin is thrown in the air. Its height is given by h(x) horizontal distance, in feet, from the point at which the javelin is thrown. 20 a. How high is the javelin when it was thrown? b. What is the maximum height of the javelin? (2 points) (2 points) c. How far from the thrower does the javelin strike the ground? Round to the nearest tenth of a foot. (4 points)