Question

How do you find the zeros by rewriting the function y=x2+4x+3 in intercept form?

Answer 1

Answer:

Step-by-step explanation:

Step 1. Factorize the quadratic function given. This is;  x2+4x+3

The product of the factors whose product is 3 and sum is 4,

are + 1 and + 3

Thus giving; In intercept form;  y=(x+1)(x+3)

Step 2; To obtain the zeros, we equate y to 0.

y=(x+1)(x+3)=0

Equate each factor to 0 and solve for x

x+1=0, x=−1

x+3=0,x=−3