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ludmilkaskok [199]
3 years ago
15

1. y = -2 √(25-x ) +8 2. y = -3 √(x+ 9) +4 Please help

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0

<u>X AND Y INTERCEPTS</u>

1st Answer:

x = 9

Step-by-step explanation:

<u>first you want to substitute the y</u>

<h3>0 = -2 √(25 - x + 8)</h3>

<u>move the expression to the left</u>

<h3>2 √(25 - x) = 8</h3>

<u>divide both sides</u>

<h3>√25 - x + 4</h3>

<u>move the constant to the right</u>

<h3>25 - x = 16</h3>

<u>calculate</u>

<h3>-x = -9</h3>

<u>change the signs</u>

<h3>x = 9</h3><h3></h3>

2nd Answer:

x = -65/9  OR x = - 7 2/9, x = - 7.2

Step-by-step explanation:

<u>first you want to substitute the y</u>

<h2>0 = -3 √(x + 9) = 4</h2>

<u>move the expression to the left</u>

<h2>3√(x+9) = 4</h2>

<u>divide both sides</u>

<h2>√(x+9) = 4/3</h2>

<u>move the constant to the right</u>

<h2>x = 16/9 - 9</h2>

<u>calculate</u>

<h2>x = -65/9</h2>

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