3. Consider the straight line x + y = 1 and the family of straight lines that pass
1 answer:
Answer:
- solution: (1/(1+m), m/(1+m))
- no solution for m = -1 (lines are parallel)
Step-by-step explanation:
Two distinct lines will always have a point of intersection, provided they are not parallel. That is, the system of equations {x +y = 1, y = mx} will have a unique solution as long as m ≠ -1.
The solution to the system can be found by substitution:
x +mx = 1
x(1 +m) = 1 . . . . factor out x
x = 1/(1+m) . . . . . divide by the coefficient of x; we must have m ≠ -1
y = m/(1+m) . . . . find the y-coordinate of the solution
The point of intersection is (1/(1+m), m/(1+m)).
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The above solution is undefined when the denominator is zero: m = -1. There is no solution for m = -1.
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Answer:
The answer is the option B
It is wider and shifted units to the right
Step-by-step explanation:
we have
The vertex of the function is the point
The vertex of the function is the point
The function is wider than the function
Because it is multiplied by a number less than
The rule of the translation is
That means
The translation is units to the right
see the attached figure to better understand the problem
First we find the measurement of dark dot .
ANd for that we have to use the formula of the angle formed by the intersection of chord .
Let the dark dot be t.
So we have
t and z are linear pair and sum of angles of linear pair =180 degree.
So we get