Please solve this… This is the question from grade XI calculas portion Help me please
1 answer:
Answer:
.
Step-by-step explanation:
Check images below.
On image 1, we started applying the L'Hôpital's rule for the limit. This rule consist on taking the derivative of the numerator and the denominator, individually and with respect to the variable of interest (in this case is x).
On image 1 we started taking the derivative with respect to x for the numerator.
Then, on image 2 we we started taking the derivative with respect to x for the denominator.
Finally, on image 3 we substituted the result of the derivatives and simplified the result.
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Answer:
The y-coordinate of their intersection point is 3
That is y=3
Step-by-step explanation:
Given two lines are y=6x+15 and y=mx+4
Given that the two lines intersect at x=-2
To find the y coordinate of their intersection point :
Equating the two lines
6x+15=mx+4
6x+15-mx-4=0
6x-mx+11=0
(6-m)x+11=0
At x=-2 (6-m)x+11=0
(6-m)(-2)+11=0
(6-m)(-2)=-11
Substitute the value in y=mx+4 we get
At x=-2
Therefore y=3
Therefore the y-coordinate of their intersection point is 3