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Linear Functions Video Lecture | Mathematics for Digital SAT

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FAQs on Linear Functions Video Lecture - Mathematics for Digital SAT

1. What is a linear function?
Ans. A linear function is a mathematical function that can be represented by a straight line graph. It has the form f(x) = mx + b, where m is the slope of the line and b is the y-intercept.
2. How do you determine the slope of a linear function?
Ans. The slope of a linear function can be determined by looking at the coefficient of x in the function's equation. The slope is equal to the coefficient of x.
3. What is the significance of the y-intercept in a linear function?
Ans. The y-intercept of a linear function represents the value of the function when x = 0. It is the point where the graph of the function intersects the y-axis.
4. How can you identify if a function is linear or not?
Ans. To determine if a function is linear, you can check if it can be written in the form f(x) = mx + b, where m and b are constants. If the function follows this form, it is linear.
5. How can linear functions be used in real-life applications?
Ans. Linear functions can be used to model relationships between variables in various real-life scenarios, such as calculating costs, predicting sales trends, or analyzing growth rates.
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