Solve 3x^2-12=-12 by graphing the related function.
2 answers:
Answer:
The given function is :
3 x² - 12 = -12
Adding 12 to both L HS and R HS
3 x²- 12 +12= -12 + 12
3 x²=0
x²=0
x=0
without Solving Graphically, got a single solution, x=0,which satisfies the above function.
Now,checking Graphically, as this is quadratic function ,number of times it crosses the X axis ,are solution of this Quadratic Function.
The function crosses , the X axis just once,
So,there is unique Solution, which is, x=0.
None of the option is true.
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Answer:
9 represents the initial height from which the ball was dropped
Step-by-step explanation:
Bouncing of a ball can be expressed by a Geometric Progression. The function for the given scenario is:
The general formula for the geometric progression modelling this scenario is:
Here,
represents the initial height i.e. the height from which the object was dropped.
r represents the percentage the object covers with respect to the previous bounce.
Comparing the given scenario with general equation, we can write:
= 9
r = 0.7 = 70%
i.e. the ball was dropped from the height of 9 feet initially and it bounces back to 70% of its previous height every time.