which pair of lines are perpendicular A . x − y = 7 A . x - y = 7 and y = x + 3 y = x + 3 B . y = − 4 x + 1 B . y = - 4 x + 1 and 8 x + 2 y = − 1 0 8 x + 2 y = - 1 0 C . y = − 8 C . y = - 8 and y = 2 y = 2 D . x = 4 D . x = 4 and y = − 1 y = - 1

Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6. Thus, the equation of the line is y = ½x + 6.

Step-by-step explanation:

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

she will travel a distance in the range of 3 - 11 miles