1.	Which is the correct graph of (2,1)?
		A.		B.
		C.		D.
		Hint
	2.	The graph of the Celsius-Kelvin temperature conversion formula, K = C + 273, is shown below. For which temperatures are the Kelvin and Celsius temperatures both positive?
		A.	temperatures greater than –273 K
		B.	temperatures greater than 0°C
		C.	temperatures greater than 0 K
		D.	temperatures less than 150°C
		Hint
	3.	The graph of the Celsius-Kelvin temperature conversion formula, K = C + 273, is shown below. For which temperatures are the Kelvin temperatures positive and the Celsius temperatures negative?
		A.	temperatures greater than 273 K
		B.	temperatures between 0 K and 273 K
		C.	temperatures between 0°C and 100°C
		D.	temperatures greater than –100°C
		Hint
	4.	In which quadrant are positive x-coordinates and negative y-coordinates located?
		A.	Quadrant II	B.	Quadrant I
		C.	Quadrant III	D.	Quadrant IV
		Hint
	5.	In which quadrant are negative x-coordinates and negative y -coordinates located?
		A.	Quadrant III	B.	Quadrant II
		C.	Quadrant IV	D.	Quadrant I
		Hint