Question

The length of a rectangle is 3 cm more than 10 times its width. The area of the rectangle is 75 cm2. A quadratic function can be used to represent the dimensions of the rectangle. What quantity of the rectangle represents the domain of that function?

Answer 1

let its width be x
than length= 3 + 10x
breadth= 1x
then area=> 3+10x * x =75

Answer 2

3x + 10xsq - 75 = 0

Answer 3

then use quadratic formula

Answer 4

domain of the function is width