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2 years ago

Which is the vertex of x^2 + 10x = - 17?

Mathematics

1 answer:

Dafna11 [192]2 years ago

3 0

Answer:

(-5, -8)

Step-by-step explanation:

Parabolas always have a lowest point (or a highest point, if the parabola is upside-down). This point, where the parabola changes direction, is called the "vertex". If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k).

x^2 + 10x = - 17

x^2+10x+17=0

x^2+2*5x+25 - 8=0

(x+5)^2-8=0

h=-5, k= -8

vertex is (-5, -8)

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Approx - 10%

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2 years ago

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kvv77 [185]

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2 years ago

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<u>Given</u>:

The given graph represents the cost of the Kayak's rental per hour.

The coordinates are (2,30) and (3,45)

We need to determine the unit rate of renting per hour.

<u>Unit rate of renting:</u>

The unit rate of renting can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Substituting the coordinates (2,30) and (3,45), we get;

$m=\frac{45-30}{3-2}$

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7 0

3 years ago

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2 years ago

How do I show the workings out for subtraction 1.56 - 5.20 =

pogonyaev

The Soluton:

Given:

$1.56-5.20$

We are asked to evaluate the given expression.

Explanation:

Since the number you are taking away is greater than thenumber that you want to taake it away from, we have to swap the numbers and then the result will be a negative number.

Therefore, the correct answer is -3.64

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10 months ago