a triangle with an area of 7cm² undergoes an enlargement and the new area is 63cm². What is tje scale factor of the enlargement.?​

New area / old area = 63/7 = 9

The actual area increased 9 times.

Area is a squared value, so the scale factor would be the square root of the increase.

Scale = sqrt(9)

Scale factor is 3

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.