Question

Problem 3) Suppose we have a line with the equation y = 2x + 3. Which of the equations below would be perpendicular to this line?(1 point)
Responses

y = 2x + 5
y = 2x + 5

y = -2x +4
y = -2x +4


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Answer 1

Neither. The given line has slope 2; a perpendicular line must have slope −1/2 (the negative reciprocal). Neither y = 2x + 5 (slope 2) nor y = −2x + 4 (slope −2) has slope −1/2.