Complete the tables. what is the interpretation of the constant proportionality in each of these?

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Find the solution of system of equation y= x-4 y=4x+2

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y