Question

What is the slope of a line parallel to 4x + y = -1?
A) m = -4
B) m = 2
C) m = -2
D) m = -5
E) m = -3

Answer 1

What is the slope of a line parallel to 10x - 5y = 8?
What is the slope of a line parallel to 4x + 2y = 5?
What is the slope of a line perpendicular to x - 5y = -10?
What is the slope of a line perpendicular to x - 3y = 9?

The answers to these questions are the a,b,c,d,e from above.

Answer 2

m = -4

Answer 3

slope of a line parallel to 10x - 5y = 8
10x_8=5y
y= 2x-8/5
Slope m= 2

Answer 4

slope of a line parallel to 4x + 2y = 5
slope m= -2

Answer 5

slope of a line perpendicular to x - 5y = -10
i.e. 5y = x+10
i.e. y=1/5x+10
Slope of the required line m =-5

Answer 6

slope of a line perpendicular to x - 3y = 9
i.r. x-9 =3y
i.e. y= 1/3x-3
slope of the required line m= -3

Answer 7

slope of a line perpendicular to x - 3y = 9
i.r. x-9 =3y
i.e. y= 1/3x-3
slope of the required line m= -3

Answer 8

Thanks @dpasingh!