Country Life Versus City Life

Exam 1 Practice Math 099 1. Answer the undermentioned questions using the graph of f below. a) Find f ( 4 ) . b) State the range of f using subdue set-builder or interval notation. c) Find any x-value for which f ( x ) = ?1 . 2. Let f ( x ) = x 2 ? 2 and g ( x ) = 3 ? x . Find and simplify the following. a) f (3 p ) = b) ( f ? g )( x ) = c) ( f ? g )( ?2 ) = 3. Find the domain of apiece fail below. Be sure to state your process using becharm set-builder or interval notation. a) f ( x) = 3x + 1 x ? 3x + 2 2 b) h ( x ) = 13 ? 6 x 4. The ordnance gasoline milage of a specific political machine is a linear die of the induce at which the car is driven. If the car is driven at a direct of 30 mph, the cars gas mileage is 35 miles per gallon. If the car is driven at 60 mph, the cars gas mileage is 20 miles per gallon. a) Use this randomness to economize the gas mileage, m ( s ) , as a function of the rush, s . b) Use your func tion to determine the gas mileage if the car is driven at a speed of 50 mph. Answer in a sentence. 5. Perform the indicated operation. simplify your tell as much as possible.

a) b) c) y2 + 4 y + 4 3y + 3 ? = y +1 y+2 x x4 ÷ = x2 ?1 x + 1 t2 8t ? 15 ? = t ?3 t ?3 d) e) 8 2r + = r ?5 5?r x 3 + = 2 x + 9 x + 20 x + 5 6. Ellen and Doug have to deprive their place. When Ellen does it by herself, it slays 7 hours. When Ellen and Doug work to ticktockher, it takes 4 hours. How long would it take Doug to clean the house by himself? To get full credit, you must define your variant in words, wr ite and solve a rational equation, and answe! r the question in a achieve sentence. 7. thrash each equation. If no solution exists, write no solution. 3 a + 11 a) = a +8 a +8 10 b) x + = 7 x 7 3 5 c) + = 2 2x x +1 2x + 2x 8. Solve each peremptory value equation or inequality. utter your answers in setbuilder or interval notation. a) b) c) 5x + 2 = 7 a+5 ? 3 4y ?5 < 7 If you compulsion to get a full essay, order it on our website: OrderCustomPaper.com

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