What is the slope of the line that passes through (3,-7) and (-1,1)

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15