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)
3. Here we use the formula
And we have the following values given
So we will get
Question 4.
In this question , we have
Interest is the difference of amount and principal, that is
The last one !!
Explanation: 200 is in the hundredths place and 300 is also a hundred then 40 is in the tenth place
The answer is b
multiply 5.32 times 46 and then 6.01 times 46 and add
or it could be a if you are rounding