Additive inverse of 58
1 answer:
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ANSWER
EXPLANATION
The given function is
We need to find the inverse of this function,
Let
We interchange x an y to obtain,
We solve for y now to obtain,
We divide through by m to get,
Hence the inverse function is ,
For this inverse to exist, the denominator must not be equal to zero,
Thus
The correct answer is A.
EXPLANATION
The given function is
We need to find the inverse of this function,
Let
We interchange x an y to obtain,
We solve for y now to obtain,
We divide through by m to get,
Hence the inverse function is ,
For this inverse to exist, the denominator must not be equal to zero,
Thus
The correct answer is A.
Answer:
C. The x-coordinate of the vertex must be 6
Step-by-step explanation:
The parabola intercepts the x-axis when y = 0.
Therefore, if the quadratic equation has the points (2, 0) and (10, 0) then the x-intercepts or "zeros" are x = 2 and x = 10.
The x-coordinate of the vertex is the midpoint of the zeros.
Therefore, the solution is option C.
<u>Additional Information</u>
The leading coefficient of a quadratic tells us if the parabola opens upwards or downwards:
- Positive leading coefficient = parabola opens upwards
- Negative leading coefficient = parabola opens downwards
We have not been given this information and so therefore cannot determine the way in which it opens.
As we do not know the way in which way the parabola opens, we cannot determine if the parabola will have a negative or positive y-intercept.
We have not been given the full quadratic equation, and so we cannot determine if the parabola is wider (or narrower) than the parent function.