1. Explain what x1 and y1 in the slope-intercept form of an equation represent.
2. Compare and contrast the graphs of x = 6 and y = 6.
3. Explain why A and B in the standard form of a linear equation cannot both be zero.
4. You Decide A line contains the points P(-3, 2) and Q(2, 5). Elena thinks that R(12, 12) is also on the line. Use the point-slope form to determine if she is correct.
State the slope and the coordinates of a point through which the line represented by each equation passes.
5. y + 3 = 4(x - 2)
6. y - (-6) = (-2/3)(x + 5)
7. 3(x + 7) = y - 1
8. Write the point-slope form of an equation of the line that passes through the given point and has the given slope.
(9, 1), m = 2/3
9. Write the equation in standard form.
y + 3 = (-3/4)(x - 1)
10.Write the point-slope form and the standard form of an equation of the line that passes through the following pair of points.