Which statement is correct for (y=19+7x)?
Answer and explanation
Correct answer: It is linear growth
The equation y=19+7x is linear, and the coefficient of x is +7. Thus, when x increases by 1 unit, y increases by 7 units, so it represents linear growth. In linear decay, the coefficient of x would be negative. Exam tip: In y=a+bx, the sign of b indicates growth or decay.
Frequently asked questions
What is the correct answer to this question?
It is linear growth
Why is this the correct answer?
The equation y=19+7x is linear, and the coefficient of x is +7. Thus, when x increases by 1 unit, y increases by 7 units, so it represents linear growth. In linear decay, the coefficient of x would be negative. Exam tip: In y=a+bx, the sign of b indicates growth or decay.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear growth and decay.
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