X3-1 on a gird is 1 on x axis and 3 on y axis
Answer:
D) (1,-2)
Step-by-step explanation:
The vertex for a quadratic function is either the minimum point or the maximum point of the curve depending on the nature of the curve from which the curve changes direction.
In the graph shown for the quadratic function, it has minimum point as the graph opens upwards. So, the vertex is the minimum point of the curve.
The vertex of the graph is .
35km; Since the points on the map are one millionth of their actual size, simply multiply by one million and convert from there.
35*1,000,000 = 35,000,000mm
35,000,000/1000 = 35,000m
35,000/1000 = 35km
Answer:
y = x(0.75)^t
the cost to rent a dvd 5 years ago is $8.43
Step-by-step explanation:
Let x represent the cost to rent a dvd 5 years ago;
And y the cost to rent a dvd t years after.
The cost to rent a dvd has decreased 25% per year, this can be written as an exponential function;
y = x(100% -25%)^t
y = x(1-0.25)^t
y = x(0.75)^t .....1
if the current cost is $2;
t = 5 years
y = $2
Substituting the values into equation 1;
2 = x(0.75)^5
2 = x(0.2373046875)
x = 2/(0.2373046875)
x = 8.427983539094
x = $8.43
Answer:
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Step-by-step explanation: