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NeTakaya
4 years ago
14

Please help ASAP. The question is down below.

Mathematics
1 answer:
Elena-2011 [213]4 years ago
4 0

Answer:

Question 1.

Option A: 2m

Question 2

Option D: (1, 1) minimum point

Step-by-step explanation:

Question 1.

Let the original length of the garden <em>(before expansion)</em> be = x

The new length of the garden will be x + 10m

Recall that the garden has a square geometry. That means that its area is obtained by squaring any of its sides.

This means that (x +10)^2 = 144

We can now solve for x

(x +10)^2 = 144\\x^2 +20x +100 = 144\\x^2 + 20x =44\\x^2 + 20x - 44=0\\x = 2 or -22

x cannot be a negative number, so the original length of a side of the garden is 2m. <em>Option A</em>

Question 2:

The coordinates of the vertex of the graph (turning point) are (x, y) [1,1]

To know whether it is a minimum or maximum point, we will have to check the coefficient of x^2 in the equation y = x^2-2x+2

The coefficient of  x^2 in the equation is 1. <em>(If no number is present, just know that the coefficient is a one).</em>

<em />

If the coefficient is positive, then the point is a minimum point. However, if it is negative, then the point is a maximum point.

Our coefficient is positive hence, the graph has a minimum point.

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Step-by-step explanation:

Let's solve your equation step-by-step.

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Step 1: Subtract 4x from both sides.

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