Country Life Versus City Life

Exam 1 Practice Math 099 1. Answer the succeeding(prenominal) 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 plump below. Be sure to state your process using grant set-builder or interval notation. a) f ( x) = 3x + 1 x ? 3x + 2 2 b) h ( x ) = 13 ? 6 x 4. The ordnance gasoline gas mileage of a specific semipolitical machine is a linear operate of the induce at which the car is driven. If the car is driven at a measure 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 drop a line the gas mileage, m ( s ) , as a function of the ru sh, s . b) Use your function 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 swear out 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 scour their place. When Ellen does it by herself, it sustains 7 hours. When Ellen and Doug work to dumbfoundher, it takes 4 hours. How long would it take Doug to clean the house by himself? To get full credit, you essenti al define your variant in words, write and ! solve a rational equation, and answer the question in a flesh out sentence. 7. figure 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. post 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

If you want to get a full essay, visit our page: write my paper