College Math CLEP Prep Practice Exam

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If a line has a slope of -3, what is the equation of the line in slope-intercept form?

y=-3x
y=3x
y=3x+1
y=-3x+1

The correct answer is: y=-3x+1

The slope-intercept form of an equation is y=mx+b, where m represents the slope and b represents the y-intercept. Option A has the correct slope, but is missing the y-intercept. Option B has the incorrect slope. Option C has the correct slope, but the y-intercept is incorrect. Option D has the correct slope and y-intercept, making it the correct answer.