A)The y-intercept is 50 because when X=0, y=50. This shows that the car was moving at 50 mph as an initial speed.
B) in two hours (from 1 to 3) the speed increased by 4 miles per 2hours. (from 52 to 56). 4/2 = 2 mph, which is the average rate of change. This represents the amount of speed increased each hour.
C) y=2x+50, and y=60 in this case, so 60=2x+50
60=2x+50
-50 -50
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10=2x
5=x, so the domain is X<=5 (less than or equal to 5)
Answer:
9
Step-by-step explanation:
because 9 is in front of the variable y
whenever there is a number before a variable then that number is a coefficient
For example:
3x+2x+5x=y
3,2,5 are all coefficients of x
The prime factorization is 5 * 17<span />
Legend:
300 square feet = 1 gallon
Samples:
roof length = 63ft long
roof width = 47ft wide
Formula for area of the roof:
Area of the roof = (Length of the roof) x (Width of the roof)
A= 63 ft X 47 ft
A= 2961 feet
1 gallon = 300 ft
? gallon = 2961 ft
2961 ft / 300 ft per 1 gallon = 9.87 (cancelling out feet it leaves you gallons)
Answer is 9.87 gallons
