1. Identify whether the slope is positive, negative, zero, or undefined. Please show work or explain answer so that I can understand it.
A) Positive B) Negative C) Zero D) Undefined
2. Find the x- and y-intercepts for the equation. Then graph the equation. Please show work.
-3x - 6y = 18
A) (0, -3), (6, 0)
B) (0, -3), (-6, 0)
3. Decide whether the pair of lines is parallel, perpendicular, or neither.
The line through (-20, 5) and (-4, 7) and the line through (-5, 5) and (7, 4) Please show work and explanation.
A) Parallel B) Perpendicular C) Neither
4. Write an equation in standard form for the line passing through the pair of points. Please show work.
(7, 8) and (7, -8)
A) -8x + 8y = 0
B) y = 8
C) x = 7
D) 8x - 8y = 0.