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2 answers:
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Answer:
m=12
Explanation:
Given any quadratic function, y=ax²+bx+c.
We can determine the nature of the roots of such quadratic function by examining the discriminant, D where:
• If D>0, the roots are real and unequal.
,• If D=0, the roots are real and equal.
,• If D<0, the roots are complex.
In our given equation:
For the function to have exactly one zero, the value of D=0.
The value of m for which the function will have one zero is 12.
Answer:
The coordinates of point E on CD are .
Step-by-step explanation:
Let be ,
and
. The given ratio can be translated vectorially into this:
And let consider that each point is a vector with respect to origin:
and
Then,
The coordinates of point E on CD are .