Textbook QuestionIn Exercises 1-12, plot the given point in a rectangular coordinate system. (1, 4)370views
Textbook QuestionGraph each equation in Exercises 1–4. Let x= -3, -2. -1, 0, 1, 2 and 3. y = 2x-2227views
Textbook QuestionFill in the blank to correctly complete each sentence. The x-intercept of the graph of 2x + 5y = 10 is ________.211views
Textbook QuestionIn Exercises 11–26, determine whether each equation defines y as a function of x. x + y = 16822views
Textbook QuestionIn Exercises 1-12, plot the given point in a rectangular coordinate system. (7/2, - 3/2)220views
Textbook QuestionDetermine whether each relation defines a function. See Example 1. {(-3,1),(4,1),(-2,7)}246views
Textbook QuestionGraph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3 y = x - 2191views
Textbook QuestionFor each piecewise-defined function, find (a) ƒ(-5), (b) ƒ(-1), (c) ƒ(0), and (d) ƒ(3).See Example 2. ƒ(x)={2+x if x<-4, -x if -4≤x≤2, 3x if x>2568views
Textbook QuestionFor each graph, determine whether y is a function of x. Give the domain and range of each relation. 449views
Textbook QuestionGraph each piecewise-defined function. See Example 2. ƒ(x)={6-x if x≤3, 3 if x>3361views
Textbook QuestionDetermine whether each relation defines a function, and give the domain and range. See Examples 1–4.276views
Textbook QuestionGraph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3 y = |x| + 1308views
Textbook QuestionIn Exercises 11–26, determine whether each equation defines y as a function of x. |x|- y = 5287views
Textbook QuestionDetermine whether the three points are the vertices of a right triangle. See Example 3. (-4,3),(2,5),(-1,-6)210views
Textbook QuestionIn Exercises 27–38, evaluate each function at the given values of the independent variable and simplify. h(x) = x^4 - x²+1 b. h (-1)219views
Textbook QuestionIn Exercises 31–32, the domain of each piecewise function is (-∞, ∞) (a) Graph each function. (b) Use the graph to determine the function's range.405views
Textbook QuestionIn Exercises 27–38, evaluate each function at the given values of the independent variable and simplify. h(x) = x^4 - x²+1 c. h (-x)346views
Textbook QuestionIn Exercises 27–38, evaluate each function at the given values of the independent variable and simplify. f(r) = √(r + 6) +3 a. f(-6)273views
Textbook QuestionFind the coordinates of the other endpoint of each line segment, given its midpoint and one endpoint. See Example 5(b). midpoint (-9, 8), endpoint (-16, 9)224views
Textbook QuestionIn Exercises 41–46, use the graph to a. determine the x-intercepts, if any; b. determine the y-intercepts, if any. For each graph, tick marks along the axes represent one unit each. 297views
Textbook QuestionFor each equation, (a) give a table with at least three ordered pairs that are solutions, and (b) graph the equation. See Examples 7 and 8. y=(1/2)x-2582views
Textbook QuestionIn Exercises 47–50, write each English sentence as an equation in two variables. Then graph the equation. The y-value is the difference between four and twice the x-value.258views
Textbook QuestionFind the value of the function for the given value of x. See Example 3. ƒ(x)=[[x]], for x=x-(-π)243views
Textbook QuestionLet ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(1/3)205views
Textbook QuestionIn Exercises 55–64, use the vertical line test to identify graphs in which y is a function of x. 411views
Textbook QuestionLet ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-x)192views
Textbook QuestionIn Exercises 55–64, use the vertical line test to identify graphs in which y is a function of x. 297views
Textbook QuestionIn Exercises 71–74, determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. The ordered pair (2, 5) satisfies 3y - 2x = - 4.257views
Textbook QuestionIn Exercises 77–92, use the graph to determine a.the x-intercepts, if any; b. the y-intercept, if any; and e. the missing function values, indicated by question marks, below each graph. 262views
Textbook QuestionIn Exercises 77–92, use the graph to determine a. the function's domain; b. the function's range; c. the x-intercepts, if any; d. the y-intercept, if any; and e. the missing function values, indicated by question marks, below each graph.280views
Textbook QuestionDetermine the largest open intervals of the domain over which each function is b) decreasing. See Example 9. 398views
Textbook QuestionDetermine whether each equation has a graph that is symmetric with respect to the x-axis, the y-axis, the origin, or none of these. |y| = -x188views1rank
Textbook QuestionIn Exercises 95–96, let f and g be defined by the following table: Find √(ƒ(−1) − f(0)) – [g (2)]² + ƒ(−2) ÷ g (2) · g (−1) .381views
Textbook QuestionYou invested $20,000 in two accounts paying 1.45% and 1.59% annual interest. If the total interest earned for the year was $307.50, how much was invested at each rate?250views
Textbook QuestionYou invested $30,000 in two accounts paying 2.19% and 2.45% annual interest. If the total interest earned for the year was $705.88, how much was invested at each rate?126views
Textbook QuestionA new car worth $36,000 is depreciating in value by $4000 per year. a. Write a formula that models the car's value, y, in dollars, after x years. b. Use the formula from part (a) to determine after how many years the car's value will be $12,000. c. Graph the formula from part (a) in the first quadrant of a rectangular coordinate system. Then show your solution to part (b) on the graph.96views
Textbook QuestionA new car worth $45,000 is depreciating in value by $5000 per year. a. Write a formula that models the car's value, y, in dollars, after x years. b. Use the formula from part (a) to determine after how many years the car's value will be $10,000. c. Graph the formula from part (a) in the first quadrant of a rectangular coordinate system. Then show your solution to part (b) on the graph.40views
Multiple ChoiceGraph the equation y−x2+3=0y-x^2+3=0y−x2+3=0 by choosing points that satisfy the equation.258views4rank
Multiple ChoiceGraph the equation y=x+1y=\sqrt{x}+1y=x+1 by choosing points that satisfy the equation. (Hint: Choose positive numbers only)281views1rank