Which equation represents an exponential function that passes through the point (2, 80)?
2 answers:
Answer:
Step-by-step explanation:
Given that the exponential function passes through the point (2,80)
Since only one point is given there may be more than one exponential function satisfying this.
One of them we select here is with base 4 and coefficient 5.
i.e.
We can check whether (2,80) lies on it.
Substitute x=2 and y =80
Left side =80
Right side =
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We know that
see the picture to better understand the problem
in the right triangle ABC
Applying the Pythagoras Theorem
AB²=BC²+AC²-------> BC²=AB²-AC²
AB=8 ft
AC=4 ft
BC²=8²-4²-----> BC²=48--------> BC=√48-------> BC=6.93 ft
the answer is
6.93 ft
see the picture to better understand the problem
in the right triangle ABC
Applying the Pythagoras Theorem
AB²=BC²+AC²-------> BC²=AB²-AC²
AB=8 ft
AC=4 ft
BC²=8²-4²-----> BC²=48--------> BC=√48-------> BC=6.93 ft
the answer is
6.93 ft