CA Foundation Exam > CA Foundation Videos > Quantitative Aptitude for CA Foundation > Straight Lines - 3
Straight Lines - 3 Video Lecture | Quantitative Aptitude for CA Foundation
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FAQs on Straight Lines - 3 Video Lecture - Quantitative Aptitude for CA Foundation
| 1. What are straight lines? |  |
Ans. Straight lines are lines that extend in one direction without any curves or bends. They can be represented by the equation y = mx + c, where m is the slope of the line and c is the y-intercept.
| 2. How can I determine the slope of a straight line? | |
Ans. The slope of a straight line can be determined by calculating the change in y-coordinates divided by the change in x-coordinates between any two points on the line. It can also be obtained from the equation of the line in the form y = mx + c, where m represents the slope.
| 3. What is the significance of the y-intercept in a straight line equation? | |
Ans. The y-intercept in a straight line equation (y = mx + c) represents the point where the line intersects the y-axis. It indicates the initial value of the dependent variable (y) when the independent variable (x) is zero. It helps in understanding the starting point or initial condition of the line.
| 4. Can a straight line have a negative slope? | |
Ans. Yes, a straight line can have a negative slope. A negative slope indicates that as the value of the independent variable (x) increases, the value of the dependent variable (y) decreases. This means that the line slopes downward from left to right.
| 5. How can I find the equation of a straight line given two points on the line? | |
Ans. To find the equation of a straight line given two points (x1, y1) and (x2, y2) on the line, you can use the slope-intercept form of the line equation, y = mx + c. First, calculate the slope (m) using the formula (y2 - y1) / (x2 - x1). Then, substitute the slope and one of the given points into the equation to find the value of c. Finally, write the equation in the form y = mx + c using the calculated values of m and c.
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Nov 21, 2024 Last updated |
Video Description: Straight Lines - 3 for CA Foundation 2024 is part of Quantitative Aptitude for CA Foundation preparation.
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