Question

slope types
write whether the slope of the line is positive, negative, zero or undefined.

Explanation:

Step1: Recall slope - type rules

Positive slope: line rises from left to right. Negative slope: line falls from left to right. Zero slope: horizontal line. Undefined slope: vertical line.

Step2: Analyze each graph

1. Vertical line, so undefined slope.
2. Line rises from left to right, so positive slope.
3. Vertical line, so undefined slope.
4. Line rises from left to right, so positive slope.
5. Line falls from left to right, so negative slope.
6. Horizontal line, so zero slope.
7. Vertical line, so undefined slope.
8. Line rises from left to right, so positive slope.
9. Line falls from left to right, so negative slope.

Answer:

1. Undefined
2. Positive
3. Undefined
4. Positive
5. Negative
6. Zero
7. Undefined
8. Positive
9. Negative