1.	Write an equation in slope-intercept form for the best-fit line of a scatter plot which contains the points (4, 60) and (9, 135).
		A.		B.	y = 15x
		C.	y = -15x	D.
		Hint
	2.	Write an equation in slope-intercept form for the best-fit line of a scatter plot with points (7, 22) and (13, 25).
		A.	y = 2x + 8	B.	y = -2x + 36
		C.	y = 0.5x + 18.5	D.	y = -0.5x + 25.5
		Hint
	3.	Write an equation in slope-intercept form for the best-fit line of a scatter plot with points (12, 9) and (17, 2).
		A.		B.
		C.	y = 1.4x – 7.8	D.	y = -1.4x + 25.8
		Hint
	4.	Write an equation in slope-intercept form for the best-fit line of a scatter plot with points (21, 57) and (30, 12).
		A.		B.	y = -5x + 162
		C.	y = 5x – 48	D.
		Hint
	5.	A best-fit line has the equation which models the number of hours y of a trip that is x miles long. Predict the time of a 200-mile trip.
		A.	about 2.3 hours	B.	about 4.6 hours
		C.	about 3.1 hours	D.	about 3.8 hours
		Hint