किसी पौधे की ऊंचाई (t=2) पर (31) सेमी और (t=7) पर (76) सेमी है। यदि वृद्धि रेखीय है तो सही मॉडल क्या होगा?
A plant's height is (31) cm at (t=2) and (76) cm at (t=7). If the growth is linear then what is the correct model?
Explanation opens after your attempt
A. (H(t)=13+9t)
Concept
The rate is \(\frac{76-31}{7-2}=9\). From (31=a+9(2)), (a=13).
Why this answer is correct
The correct answer is A. (H(t)=13+9t). The rate is \(\frac{76-31}{7-2}=9\). From (31=a+9(2)), (a=13).
Exam Tip
दर \(\frac{76-31}{7-2}=9\) है। (31=a+9(2)) से (a=13) मिलता है।
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