Evaluate the expression for the given value of x.
1 answer:
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The parabola opens towards left, this means the squared term is y with negative coefficient.
The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:
where a is any constant.
In the given options, only 1 such equation is available and that is option C.
So the answer to this question is option C
The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:
where a is any constant.
In the given options, only 1 such equation is available and that is option C.
So the answer to this question is option C
The solution of the system of equation is the intersection point of the two quadratic equations, so we need to equate both equations, that is,
So, by moving the term -3x^3+20 to the left hand side, we have
Then, in order to solve this equation, we can apply the quadratic formula
In our case, a=5, b=-3 and c=-30. So we get
which gives
By substituting these points into one of the functions, we have
and
Then, by rounding these numbers to the nearest tenth, we have the following points:
Therefore, the answer is the last option