How do you find the axis of symmetry, and the maximum or minimum value of the function #y = x^2 + 2x – 3#?

Answer 1

Axis of symmetry #x_0=-1#
Minimum #y_0=-4#

Axis of symmetry of parabola is: #x_0=-2/(2*1)=-1# Minimum: #y(x_0)=(-1)^2+2*(-1)-3=-4# Maximum is no.
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Answer 2

The axis of symmetry is x = -b/2a, where a = 1, and b = 2. Substituting these values, we get x = -2/(21) = -1. To find the maximum or minimum value, plug this x-value into the function: y = (-1)^2 + 2(-1) - 3 = -2. Therefore, the axis of symmetry is x = -1, and the minimum value is y = -2.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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