If y-x2-2 x-3- y-x graphB-C-D-

The correct option is B y will be zero when, x^2 + 2x 3 = 0 ⇒ x^2 + 3x x 3 = 0 ⇒ (x+ 3)(x 1) = 0 ⇒ x= 3 or x =1 Clearly we can see that option c matches ...

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Standard XII

Physics

Introduction

If y=x2+2 x-3...

Question

If $y = x^{2} + 2 x - 3$ , y-x graph is

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Solution

The correct option is C
y will be zero when, $x^{2} + 2 x - 3 = 0$
$\Rightarrow x^{2} + 3 x - x - 3 = 0$
$\Rightarrow (x + 3) (x - 1) = 0$
$\Rightarrow x = - 3 o r x = 1$
Clearly we can see that option c matches our finding, hence option (c) is the right answer.

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If y = x2 + 2x − 3, y-x graph is

The correct option is C y will be zero when, x2 + 2x − 3 = 0 ⇒ x2 + 3x − x −3 = 0 ⇒ (x+ 3)(x−1) = 0 ⇒ x= −3 or x =1 Clearly we can see that option c matches our finding, hence option (c) is the right answer.

If $y = x^{2} + 2 x - 3$ , y-x graph is

The correct option is C
y will be zero when, $x^{2} + 2 x - 3 = 0$
$\Rightarrow x^{2} + 3 x - x - 3 = 0$
$\Rightarrow (x + 3) (x - 1) = 0$
$\Rightarrow x = - 3 o r x = 1$
Clearly we can see that option c matches our finding, hence option (c) is the right answer.