What does it mean if the distance between a point p and a line l is zero? What does it mean if the distance between two lines is
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
We know that the standard quadratic equation is ax^2+bx+c=0
Let's compare all the given equation to it and , find discriminant.
1. a=2, b= -7, c=-9
So it has 2 real number solutions.
2. a=1, b=-4, c=4
So it has only 1 real number solution.
3. a=4, b=-3, c=-1
So it has 2 real number solutions.
4. a=1, b=-2, c=-8
So it has 2 real number solutions.
5. a=3, b=5, c=3
Thus it does not has real solutions.
Answer:
The line equation is:
Step-by-step explanation:
Given
- The point = (4, 8)
- m = -1/4
We know that point-slope form of the line equation is
where
- m = slope
- (x₁, y₁) = point
substituting the values m = -1/4 and the point (4, 8)
Add 8 to both sides
Thus, the line equation is: