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2 answers:
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The slope of the line passing through the points A(a, b), and B(c, d), is given by
thus, the slope of the line through <span>points (p, a) and (p, –a) is
</span>
When applying the slope formula results in division by zero, this means that the line is a vertical line.
This could have also been noticed directly, since the line contains 2 points with the same x-coordinate.
The equation of this line is x=p, since the x-coordinate is always p, no matter what y is.
If p=0, then the equation of the line is x=0, which is the y-axis itself. In this case, the y-intercept is the whole y-axis.
Answer: The whole y-axis.
thus, the slope of the line through <span>points (p, a) and (p, –a) is
</span>
When applying the slope formula results in division by zero, this means that the line is a vertical line.
This could have also been noticed directly, since the line contains 2 points with the same x-coordinate.
The equation of this line is x=p, since the x-coordinate is always p, no matter what y is.
If p=0, then the equation of the line is x=0, which is the y-axis itself. In this case, the y-intercept is the whole y-axis.
Answer: The whole y-axis.
The answer is B.
1. Use the quadratic formula
2. Solve everything under the square root
3. Solve the denominator
You can check the picture to see the work
1. Use the quadratic formula
2. Solve everything under the square root
3. Solve the denominator
You can check the picture to see the work