Intermediate Algebra (11th edition)

EXERCISES 73 – 75 73.The screens show the graph of one of the equations in A – D. Which equation is it? A. B. C. - 3 x- 2 y= 6 D ...

STUDY SKILLS Analyzing Your Test Results Find each quotient. See Section 1.2. Solve each equation for y. See Sec ...

Slope is the ratio of vertical change, or rise,to horizontal change, or run.A sim- ple way to remember this is to think, “Slope ...

Finding the Slope of a Line Find the slope of the line through the points and We let and in the slope formula. Thus, the slope i ...

Finding Slopes of Horizontal and Vertical Lines Find the slope of each line. (a) The graph of is a horizontal line. See FIGURE 1 ...

Finding the Slope from an Equation Find the slope of the graph of Solve the equation for y. Subtract 3x. Divide eachterm by. The ...

In Example 5(a),the slope of the line is the positivenumber The graph of the line in FIGURE 18slants up (rises) from left to rig ...

Determining Whether Two Lines Are Perpendicular Are the lines with equations and perpendicular? Find the slope of each line by s ...

OBJECTIVE 5 Solve problems involving average rate of change.The slope formula applied to any two points on a line gives the aver ...

SECTION 3.2 The Slope of a Line 155 Interpreting Slope as Average Rate of Change During the year 2000, the average person in the ...

156 CHAPTER 3 Graphs, Linear Equations, and Functions 5.Concept Check Match each situation in (a) – (d) with the most appropriat ...

23.Concept Check On the basis of the figure shown here, determine which line satisfies the given description. (a)The line has po ...

Graph each line described. See Example 5. 57.Through ; 58.Through ; 59.y-intercept ; 60.y-intercept ; 61.Through ; 62.Through ; ...

86.The upper deck at U.S. Cellular Field in Chicago has produced, among other complaints, displeas- ure with its steepness. It i ...

90.The graph provides a good approx- imation of the number of mobile homes (in thousands) placed in use in the United States fro ...

Solve each equation for y. See Section 2.2. Write each equation in the form See Section 2.1. 105.y- 1 - 12 =- 1 2 ...

NOTE Every linear equation (of a nonvertical line) has a unique(one and only one) slope-intercept form. In Section 3.6,we study ...

Writing an Equation of a Line, Given the Slope and a Point Write an equation of the line with slope and passing through the poin ...

Writing Equations of Horizontal and Vertical Lines Write an equation of the line passing through the point that satisfies the gi ...

Use either or as in the point-slope form of the equation of a line. We choose so and Point-slope form Definition of subtraction ...