College Algebra CLEP Prep Practice Exam

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Prepare for the College Algebra CLEP Test with our comprehensive practice exam. Study with flashcards and multiple choice questions, each offering clues and detailed explanations. Achieve your best score and excel in your exam!

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What is the slope of the line with points (2, -1) and (4, 1) ?

–1/2
–2
1/2
2

The correct answer is: –1/2

To find the slope of a line, we use the formula (y2-y1)/(x2-x1), where (x1,y1) and (x2,y2) are the coordinates of the two given points. In this case, that would be (2, -1) and (4, 1). Plugging in the values, we get (1-(-1))/(4-2) = 2/2 = 1. Therefore, the slope of the line is 1, which is equivalent to 1/1. The incorrect options are - B: –2, which is the y-value difference divided by the x-value difference in the reverse order. - C: 1/2, which omits the negative sign and is also the y-value difference divided by the x-value difference in the reverse order. - D