What is the slope of the line through and ?
Answer and explanation
Correct answer: D. 3
- 1/3 inverts the slope formula as .
- -3 introduces an extraneous negative sign in the quotient .
- 4 results from subtracting coordinates incorrectly.
- -3 introduces an extraneous negative sign in the quotient .
- 4 results from subtracting coordinates incorrectly.
- Step 1: State the slope formula: .
- Step 2: Substitute and : .
- Step 3: Simplify numerator and denominator: .
Answer
.
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