Problem 47
Find the value of the function for the given value of x. See Example 3. ƒ(x)=[[x/4]], for x=7
- For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4. ƒ(x)=-2x+5
Problem 47
Problem 47
Determine whether each relation defines y as a function of x. Give the domain and range. See Example 5. y=2/(x-3)
Problem 48
Determine whether each relation defines y as a function of x. Give the domain and range. See Example 5. y=-7/(x-5)
Problem 48
Find the value of the function for the given value of x. See Example 3. ƒ(x)=[[3-(x/2)]], for x=1
Problem 48
For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4.
Problem 49
Find the value of the function for the given value of x. See Example 3. ƒ(x)=[[x]], for x=x-(-π)
- For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4. ƒ(x)=1/x
Problem 49
- The graph of a linear function f is shown. (a) Identify the slope, y-intercept, and x-intercept. (b) Write an equation that defines f.
Problem 49

Problem 50
Find the value of the function for the given value of x. See Example 3. ƒ(x)=[[x]], for x=-√2
Problem 50
For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4.
- Write an equation (a) in standard form and (b) in slope-intercept form for each line described. through (-1, 4), parallel to x+3y=5
Problem 51
- Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(0)
Problem 51
- For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4. ƒ(x)=x^2
Problem 51
- Find the slope of each line, provided that it has a slope. through (0, -7) and (3, -7)
Problem 51
Problem 51
Find the value of the function for the given value of x. See Example 3. ƒ(x)={5 if 02, for x=5.6
Problem 52
Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-3)
Problem 52
For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4.
Problem 52
Find the value of the function for the given value of x. See Example 3. ƒ(x)={3 if 04, for x=6.2
Problem 53
Write an equation (a) in standard form and (b) in slope-intercept form for each line described. through (1, 6), perpendicular to 3x+5y=1
Problem 53
Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. g(-2)
Problem 53
For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4.
Problem 54
Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. g(10)
Problem 54
For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4.
Problem 54
Graph each function. Give the domain and range. See Example 3. ƒ(x)=-[[x]]
Problem 55
Write an equation (a) in standard form and (b) in slope-intercept form for each line described. through (4, 1), parallel to y=-5
- For each function, find (a)ƒ(x+h), (b)ƒ(x+h)-ƒ(x), and (c)[ƒ(x+h)-ƒ(x)]/h.See Example 4. ƒ(x)=x^2+3x+1
Problem 55
- Graph each function. Give the domain and range. See Example 3. ƒ(x)=[[2x]]
Problem 55
- For each line, (a) find the slope and (b) sketch the graph. See Examples 6 and 7. 5x - 2y = 10
Problem 55
Problem 56
Let ƒ(x)=-3x+4 and g(x)=-x^2+4x+1. Find each of the following. Simplify if necessary. See Example 6. ƒ(-7/3)
Ch. 2 - Graphs and Functions
