Question

What are the zeros of the function y = 2x*2 +7x + 3?

A.) X = 1/2 , X = 3

B.) X = -1/2 , x = -3

C.) x = 1/2 , x = -3

D.) x = -1/2 , x = 3

Answer 1

The correct answer is option B.

Explanation:

Given function ;

`y =2x^2+7x+3`

In order to determine the zeros of function , put y = 0:

`0=2x^2+7x+3`

Using mid-therm theorem ;

`2x^2+1x+6x+3=0`

`x(2x+1)+3(2x+1)=0]`

`(2x+1)(x+3)=0`

1) (2x+1)= 0

`x=-(1)/(2)`

2) x +3 = 0

`x = -3`

Answer 2

A graph shows the appropriate selection is ...
B.) x = -1/2, x = -3