2) Find the approximate perimeter and area of the figure below. 10.82 mm
10.82 mm
12 mm
Perimeter:
Area:

y = 2x² - 2x - 24

Step-by-step explanation:

Given a root x = a then the factor is (x - a )

Given roots are x = 4 and x = - 3 , the corresponding factors are

(x - 4) and (x - (- 3)) , that is (x - 4) and (x + 3)

The quadratic is then the product of the factors

y = a(x - 4)(x + 3) ← a is a multiplier

To find a substitute (3, - 12) into the equation

- 12 = a(- 1)(6) = - 6a ( divide both sides by - 6 )

2 = a

y = 2(x - 4)(x + 3) ← expand factors using FOIL

   = 2(x² - x - 12) ← distribute

y = 2x² - 2x - 24