he temperature was 65 degrees at daybreak. Then it dropped 2 degrees per hour until dusk. If x is the number of hours since daybreak, this equation represents the temperature during the day: y = -2x + 65 OR y = 65 - 2x. Use the equation to predict the temperature 6 hours later.

Question

anonymous · Answer

x is the number of hours after daybreak
y is his temperature after x hours

so , y = 65 - 2(6)       since x = 6 hrs
         = 53

anonymous · Answer

Thank you. Can you help me on this one...   What is the slope in the equation: y = 6x - 300?
	A.	300      B.	6    C.-6      D.	-300

anonymous · Answer

equation of a straight line: y = mx + c

m is the gradient so whatever is paired with x is the gradient

hence the answer is 6

c is the y-intercept
so the graph cuts the vertical axis at y = -300

anonymous · Answer

Okay, thank you.

anonymous · Answer

You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mi. Which equation best represents this information?
	A.	y = 0.03x + 15
	B.	y = 0.03x - 15
	C.	y = -0.03x + 15
	D.	y = -0.03x - 15

anonymous · Answer

C or D

anonymous · Answer

Right?

anonymous · Answer

Adam goes to a skating rink on Tuesdays for $8.50. While there, he pays $1.50 for each item he buys at the concession stand. Which equation best represents this information?