Determine whether the graphs of the given equations are parallel, perpendicular, or neither. Explain.
44. y = 4x + 5
-4x + y = -13
45.y
7
-x-7
9
7
--x + 3
9
y
46. y = -6x - 8
-X + 6y = 12

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Find the slope of the line passing through a pair of points

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.