Question

Select the equation of a line that is perpendicular to the line on the graph and passes through the point (-1, 2).

y = 2x + 4
y = - 2x + 2
y = - 1 over 2 x + 2
y = 2x - 1

Answer 1

calculate the gradient of the graph. Invert it, multiply it by -1, that's the new gradient. Plug in values for C then.

Answer 2

y-y1=m(x-x1)
slopes of perpendicular lines are opposite reciprocals
what's the slope of the graph first ?

Answer 3

is the answer 2x +4

Answer 4

@Godlovesme

Answer 5

hang on trying to figure out the answer

Answer 6

ok @Godlovesme

Answer 7

yes

Answer 8

yes sorry i was graphing @hi10500