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Problem 28
Graph each piecewise-defined function.
Problem 29
Determine whether the three points are collinear. (0,-7),(-3,5),(2,-15)
Problem 29
Graph each piecewise-defined function.
Problem 29
Write an equation for each line described. Give answers in standard form for Exercises 11–20 and in slope-intercept form (if possible) for Exercises 21–32. through (-2,5) having slope -4
Problem 29
Give the center and radius of the circle represented by each equation. x2+y2-4x+12y=-4
Problem 29
Graph each line. Give the domain and range. -x + 5 = 0
Problem 29
Determine whether each relation defines a function, and give the domain and range.
Problem 29
Graph each function. See Examples 1 and 2. h(x)=|-(1/2)x|
Problem 30
Graph each piecewise-defined function.
Problem 30
Determine whether each relation defines a function, and give the domain and range.
Problem 30
Graph each line. Give the domain and range. 3 + x = 0
Problem 31
Determine whether each relation defines a function, and give the domain and range.
Problem 31
Graph each function. See Examples 1 and 2. h(x)=√(4x)
Problem 31
Determine whether the three points are collinear. (0, 9),(-3, -7),(2, 19)
Problem 31
Write an equation for each line described. Give answers in standard form for Exercises 11–20 and in slope-intercept form (if possible) for Exercises 21–32. slope 0, y-intercept (0, 3/2)
Problem 31
Match each equation with the sketch that most closely resembles its graph. y = 5
Problem 32
Determine whether each relation defines a function, and give the domain and range.
Problem 33
Determine whether the three points are collinear. (-7,4),(6,-2),(-1,1)
Problem 33
Graph each function. See Examples 1 and 2. ƒ(x)=-√-x
Problem 33
Match each equation with the sketch that most closely resembles its graph. x = 5
Problem 33a
Use the graph to evaluate each expression. See Example 3(a).
(ƒ+g)(2)
Problem 33b
Use the graph to evaluate each expression. See Example 3(a).
(ƒ-g)(1)
Problem 33c
Use the graph to evaluate each expression. See Example 3(a).
(ƒg)(0)
Problem 33d
Use the graph to evaluate each expression. See Example 3(a).
(ƒ/g)(1)
Problem 34
Let ƒ(x) = -2x2 + 3x -6. Find each of the following. ƒ(-0.5)
Problem 34a
Use the graph to evaluate each expression. See Example 3(a).
(ƒ+g)(0)
Problem 34b
Use the graph to evaluate each expression. See Example 3(a).
(ƒ-g)(-1)
Problem 34c
Use the graph to evaluate each expression. See Example 3(a).
(ƒg)(1)
Problem 34d
Use the graph to evaluate each expression. See Example 3(a).
(ƒ/g)(2)
Problem 35
Use a graphing calculator to graph each equation in the standard viewing window. y = 3x + 4
