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Chapter 2: Q55. (page 74)

What is the slope of a line perpendicular to a line with slope -12?

(A) -2 (B) -12 (C) 12 (D) 2

Short Answer

Expert verified

The slope of a line perpendicular to a line with slope -12is 2. So, (D) is the correct option.

Step by step solution

01

– State the formula

The slope of a line perpendicular to a line having slope m is -1m.

02

– List the given data

The slope of a line is -12. The objective is to find the slope of a line perpendicular to this line.

03

– Calculate the slope

Put m=-12in -1mto get,

鈭�1m=鈭�1鈭�12=112=2

So, the slope of the line perpendicular to this line is 2.

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