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anonymous
 one year ago
Line EF has an equation of a line y = −2x + 7. Which of the following could be an equation for a line that is perpendicular to line EF?
y = 2x − 3
y = 1 over 2x − 3
y = −2x − 3
y = −1 over 2x − 3
anonymous
 one year ago
Line EF has an equation of a line y = −2x + 7. Which of the following could be an equation for a line that is perpendicular to line EF? y = 2x − 3 y = 1 over 2x − 3 y = −2x − 3 y = −1 over 2x − 3

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Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Perpendicular lines (provided neither is vertical) have slopes that multiply to 1. If the given line has a perpendicular line to it among the options, the option line will have a slope of 1/2 because the given line's slope is 2 and 2 times 1/2 = 1.
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