Question 12 information reference tables look at each expression. is it a factor of 8x4 + 2x2 – 45 when this expression is fully
1 answer:
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Answer:
Step-by-step explanation:
The axis of symmetry can be calculated using the formula:
First we must determine a and b from the quadratic: . This is in standard form, with the highest power first in descending order.
Standard form is also:
If we compare this to the quadratic given, we can conclude that:
Substitute the values for a and b into the formula.
Multiply in the denominator.
Divide.
This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.
Answer:
Step-by-step explanation:
The limit is:
so, you have an indeterminate result. By using the l'Hôpital's rule you have:
by replacing, and applying repeatedly you obtain:
hence, the limit of the function is -1/14