Question

Which equation represents a line that is perpendicular to the line represented by 2x - y = 7 ?

1) y = -1/2x + 6
2) y= 1/2x + 6
3) -2x + 6
4) y = 2x + 6

Answer 1

Hello:
the equation is : y = ax+b
the slope is a : a×(2) = -1......( perpendicular to a line with a slope of 2) because : 2x-y =7 ..y=2x-7 )

a = -1/2 y=(-1/2)x+b..... ( exemple : 1) y = -1/2x + 6 )