For each of the following quadratic functions; (a) f(x) = 4x^2-7x+2 (b) g(x) = 9.5(x-1)^2+1.8 (c) h(x) = -2(x+7)(2x-3)

Question

(i) give the form of each given function

 (ii) explain the method you would use to determine the number of zeros.

(iii) state the number of roots

Answer 1

a i) Standard Form

a ii) Using quadratic formula

a iii) 2

b i) Vertex form

b ii) Using algebric method.

b iii) 0

c i) Intercept form

c ii) Inspection method

c iii) 2