What is the slope of the line through and ?
Answer and explanation
Correct answer: C. -2
- -1 divides by 4 instead of 2.
- -1/2 inverts the slope formula as .
- 2 drops the negative sign from the slope.
- -1/2 inverts the slope formula as .
- 2 drops the negative sign from the slope.
- Step 1: State the slope formula: .
- Step 2: Substitute and : .
- Step 3: Simplify numerator and denominator: .
Answer
.
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