Consider the line y=-1/4x+9 . what is the slope of a line parallel to this line? what is the slope of a line perpendicular to this line?

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Use the graph of the sine function y=2sinθ shown below

10% of 1,900,000. show me how you got the answer