Exam 1: Functions and Their Graphs

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Does the function have an inverse function? Does the function have an inverse function?

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Determine which point lies on the graph of the equation 9x2+4x109 x ^ { 2 } + 4 x - 10 .

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The work W (in joules) done when lifting an object varies jointly with the mass m (in kilograms) of the object and the height h (in meters) that the object is lifted.The work done when a 120-kilogram object is lifted 1.8 meters is 2116.8 joules.How much work is done when lifting a 200-kilogram object 1.5 meters? ​

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Find all real values of x such that f(x) = 0. f(x)=5x73f ( x ) = \frac { 5 x - 7 } { 3 }

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Determine the quadrant(s) in which (x, y) is located so that the condition(s) is (are) satisfied. ​ X = -2 and y > 0 ​

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Find the y-intercept of the line determined by the equation. 7x+4y=3- 7 x + 4 y = 3

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Find all real values of x such that f(x) = 0. ​ F(x) = x3 - x2 - 9x + 9 ​

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Write the linear function f such that it has the indicated values. f (-1) = -5, f (-9) = -6

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Find the difference quotient and simplify your answer. F(y) = 6y2 - 3y, f(2+h)f(2)h\frac { f ( 2 + h ) - f ( 2 ) } { h } , h \neq 0

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The suggested retail price of a new hybrid car is p dollars.The dealership advertises a factory rebate of $2000 . Select a function R in terms of p giving the cost of the hybrid car after receiving the rebate from the factory.

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Evaluate g(t) - g(9) if g(t) = 12t2 - 6t + 3. ​

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Assume that y is directly proportional to x.Use the given x-value and y-value to find a linear model that relates y and x. x=5,y=24x = 5 , y = 24

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The weekly cost C of producing units x in a manufacturing process is given by C(x)=30x+750C ( x ) = 30 x + 750 .The number of units x produced in t hours is given by x(t)=70tx ( t ) = 70 t . Find the cost of the units produced in 6 hours.

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Find the graph of the equation. f(x)=3x4f ( x ) = \sqrt { 3 x - 4 }

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Select the correct graph of the given function. f(x)=x+1+2f ( x ) = \sqrt { x + 1 } + 2

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The point A has coordinates (-3, 5).If A is moved 3 units upward 6 units to the left, what are the new coordinates of A ?

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Assume that the graph has Origin symmetry.Select the complete graph of the equation. ​ Assume that the graph has Origin symmetry.Select the complete graph of the equation. ​   ​

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Write an equation for the function that is described by the following characteristics. The shape of f(x) = [[x]], but reflected in the y-axis, moved eight units down.

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Use a graphing utility to graph the function and approximate (to two decimal places) any relative minimum or relative maximum values. f(x)=x3+2x22x+3f ( x ) = x ^ { 3 } + 2 x ^ { 2 } - 2 x + 3

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Find the distance between the points (4, -5) and (9, 0).Round the answer to the nearest tenth. ​

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