PracticeTest1

# PracticeTest1 - 7 g f iv Find the range of x g v For what...

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PRACTICE TEST 1 Show all work for full credit, if work can be shown… 1. (10 pts.) Simplify using the laws of exponents. Your final expression should have positive exponents only! 3 0 4 5 2 14 42 - - - z y x xy 2. (10 pts.) Find the equation of the line that is parallel to the line 10 5 4 = + y x and passes through the point ( 29 10 , 3 - - . Write your solution in b mx y + = form. 1

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3. (10 pts.) Graph and state the slope and y-intercept for the following graph: 18 9 3 = - y x Slope = y-intercept = 4. We can convert temperatures from degrees Celsius to Fahrenheit by using the formula 32 5 9 + = C F . a. Find the y-intercept b. Explain in words what the y-intercept means (Notice that C ° 0 is the freezing point of water) c. Find the slope d. Explain in words what the slope means 2
5. (15 pts.) If 2 ) ( 2 - = x x f and x x g 3 ) ( = , answer the following questions: a. Find ( 29 ) 5 ( fg b. Find ) 10 ( - g c. Find ( 29 ) 5 ( - + g f d. Find ) ( x g f e. Find ) 3 ( + r f and simplify your result. 3

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6. (15 pts.) Given the following graph, answer the questions below: i. Find ) 1 ( - f ii. Find ) 4 ( - g iii. Find )

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Unformatted text preview: 7 ( g f iv. Find the range of ) ( x g v. For what value of x does 1 ) (-= x f 4 7. (10 pts.) Sketch a graph of 2 ) (-= x x f , plotting as many points as needed to get a nice and accurate graph. (You can decide how many points to use, but you need to make sure your graph looks good!) Remember that x is the absolute value of x! 5 8. (20 pts.) The following graph models the Trade in Value of a truck after t years after purchase: a. After how many years is the trade in value of the truck \$600? b. What is the trade in value of the truck 4 years after purchase? c. Find ) ( V . d. What does ) ( V represent? (Write a sentence saying what that value means for this problem) e. What is the slope of ) ( t V ? f. And what does the slope mean? (Write a sentence saying what that value means, use units !) g. Write the equation of the graph of ) ( t V . 6...
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PracticeTest1 - 7 g f iv Find the range of x g v For what...

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