Identify whether each phrase is an expression, equation, or inequality.
2 answers:
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Considering the definition of exponential function, the value of the car is 11,287.25 dollars.
<h3>What is exponential function</h3>An exponential function is one in which the independent variable x appears in the exponent and has a constant a as its base. Its expression is:
f(x)= aˣ
Being a a positive real, a > 0, and different from 1, a ≠ 1.
When 0 < a < 1, then the exponential function is a decreasing function and when a > 1, it is an increasing function.
<h3>What is the price of the car</h3>In this case, the value of that car depreciates based on the function f(t)=12,000× where t is measured in years after purchase.
After 3/2 years, the value of the car is calculated as:
f(3/2)=12,000×
Solving:
<u><em>f(3/2)= 11,287.25</em></u>
Finally, the value of the car is 11,287.25 dollars.
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Answer:
Perpendicular
Step-by-step explanation:
Given points P=(2,6) and Q=(4,5)
The line RS is y=2x-3.
Now we know that the line joining any two points (x1,y1) and (x2,y2) has slope m=
Now the slope of the line PQ is
m1== -
We know that the slope of the line in the form y=mx+c is m
So the line RS has slope m2=2
Now two lines are parallel if m1=m2
And those two lines are perpendicular if
here m1= - and m2=2
clearly
Therefore the two given lines are perpendicular