Which equation is perpendicular to y equals 2x-7?

Answer 1

9

Answer 2

y = 2x - 7

For perpendicular slopes/gradients , use the equation.

mm' = -1

Where 'm' & 'm'' are the two perpendicular slopes.

Hence

2m' = -1

m' = -1/2 = -0.5

Hence a perpendicular line would be

y = -0.5x - 7 or

y = -x/2 - 7

or

2y = -x -14

Answer 3

y(perpendicular)= -(1/2)x+C, where C is any real number. The slope perpendicular to a given line is the negative reciprocal of that slope, i.e. x => -(1/x), and the y intercept C can be any real number as that does not affect the slope.