1. Write a counterexample to the statement "You must always know two points that satisfy an equation in order to graph the equation."
2. Explain why the value of d cannot be zero in Exercise 4.
3. Illustrate how you graph a line if you know a point on the line and its slope.
4. Describe two ways in which you can interpret the slope -3/4 when using it to find another point on the graph of a line.
5. Assess Yourself List all the possible ways you know to graph the equation of a line. Which of these methods do you prefer and why?
6.
a. Graph 3x - 8y = 12.
b. Where does the line intersect the x-axis?
c. Where does the line intersect the y-axis?
d. What is the slope of the line?
7. Graph y + 5 = -2(x + 1) by using the slope and a point on the line.
8. Graph (2/3)x + (1/2)y = 3 by using the slope and y-intercept.
Graph
9. y = 2x - 3
10. 6y + 12 = 18