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3 years ago

Y = - 1/3x +7 find the slope and y intercept

Mathematics

2 answers:

nadya68 [22]3 years ago

6 0

Slope is -1/3
Y intercept it 7

rewona [7]3 years ago

3 0

The slope is -1/3 and intercept is 7

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3 years ago

Which one has the same value as 1 hundred 7 tens

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4 years ago

6 people will attend a lunch. 2 cans of juice should be provided per person. Determine the total number of cans of juice require

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4 years ago

0.006/6,000 is it Much Larger than or close to 1

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Less close to one

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3 years ago

Q is a degree 5 polynomial that passes through the origin, has zeros i and 7 - i, and q(-1)= -520. find the equation for q

Lunna [17]

Using the factor theorem, the equation for q is:

$q(x) = 4(x^5 - 14x^4 + 51x^3 - 14x^2 + 50x)$

The <em>Factor Theorem</em> states that a polynomial function with roots $x_1, x_2, ..., x_n$ is given by:

$f(x) = a(x - x_1)(x - x_2)...(x - x_n)$

In which a is the leading coefficient.

In this problem:

Passes through the origin, so x = 0 is a zero, that is $x_1 = 0$ .
x = i is a zero, and thus, it's conjugate also is, that is, x = -i, hence $x_2 = i, x_3 = -i$

x = 7 - i is a zero, and thus, it's conjugate also is, that is, x = 7 + i, hence $x_4 = 7 - i, x_3 = 7 + i$

Then, the equation is:

$q(x) = a(x - 0)(x - i)(x + i)(x - 7 + i)(x - 7 - i)$

$q(x) = ax(x^2 - i^2)((x-7)^2 - i^2)$

Considering that $i^2 = -1$

$q(x) = ax(x^2 + 1)(x^2 - 14x + 50)$

$q(x) = ax(x^4 - 14x^3 + 51x^2 - 14x + 50)$

$q(x) = a(x^5 - 14x^4 + 51x^3 - 14x^2 + 50x)$

q(-1) = -520 means that when $x = -1, q = -520$ , and this is used to find a.

$q(x) = a(x^5 - 14x^4 + 51x^3 - 14x^2 + 50x)$

$-520 = a(-1 - 14 - 51 - 14 - 50)$

$130a = 520$

$a = \frac{520}{130}$

$a = 4$

Hence, the equation is:

$q(x) = 4(x^5 - 14x^4 + 51x^3 - 14x^2 + 50x)$

A similar problem is given at brainly.com/question/24380382

4 0

2 years ago

Y =￼ ￼- 1/3x +￼7 find the slope and y intercept

Y = - 1/3x +7 find the slope and y intercept