Question what-i
What is the slope of the graph of in the xy-plane?
What is the slope of the graph of 10 x - 5 y = - 12
Hard-difficulty · SAT Math · Linear Functions — Slope calculation and interpretation. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice D is correct. A linear equation can be written in the form , where is the slope of the graph of the equation in the xy-plane and is the y-intercept. Subtracting from each side of the given equation, , yields . Dividing each side of this equation by yields . This equation is in the form , where . Therefore, the slope of the graph of the given equation in the xy-plane is .
Choice A is incorrect and may result from conceptual or calculation errors.
Choice B is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
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