Rationalise the denominator of: -7/(√11 - √5)

Given,

The denominator is √11 - √5.

We know that

Rationalising factor of √a-√b is √a+√b.

Therefore, the rationalising factor of √11-√5 is √11+√5.

On rationalising the denominator them

Multiplying (√11 + √5) with both the numerator of the fraction.

Performing multiplication in the numerator and by using identity (a + b)(a - b) = a² - b², solving further in the denominator.

Writing the squares of the numbers in the denominator.

Performing subtraction in the denominator.

Hence, the denominator is rationalised.

b

step-by-step explanation:

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1