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2 years ago

Ldentify the slope and yintercept of the function y = 3x- 6.

Mathematics

1 answer:

Katarina [22]2 years ago

8 0

QUESTION:

Identify the slope and y-intercept of the function y = 3x - 6

ANSWER:

In all choices the correct answer is $\green{\boxed{B}}$

Slope: $\green{{3}}$

y-intercept: $\green{{0, -6}}$

EXPLANATION:

The slope-intercept form is $\blue{{y = mx + b,}}$ where $\blue{{m}}$ is the slope and $\blue{{b}}$ is the y-intercept

$\green{{y = mx + b}}$

Find the values of $\blue{{m}}$ and $\blue{{b}}$ using the form:

$\green{{y = mx + b}}$

$\green{{m = 3}}$

$\green{{b = -6}}$

The slope of the line is the value of $\blue{{m}}$ , and the y-intercept is the value of $\blue{{b}}$

Slope: $\green{\boxed{3}}$

y-intercept: $\green{\boxed{(0, -6)}}$

hope it's helps

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Answer:

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d. x = ±7

Step-by-step explanation:

a. First person;

y = x² + 11x + 18

y = x² + 9x + 2x + 18

y = x(x + 9) + 2(x + 9)

y = (x + 9)(x + 2)

y = x = -9 or x = -2

b. Second person;

y = -5x + 20

The common factor is 5.

y = -5(x - 4)

c. Third person;

y = x² - 2x - 15

y = x² - 5x + 3x - 15

y = x(x - 5) + 3(x - 5)

y = (x + 3)(x - 5)

y = x = -3 or x = 5

d. Fourth person;

y = x² - 49

Applying the difference of squares formula;

(a² - b²) = (a - b)(a + b)

y = x² - 49 = x² - 7² = (x - 7)(x + 7)

y = (x - 7)(x + 7)

y = x = ±7

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2 years ago

Anissa is considering buying her first home. The house she is interested in buying is priced at $139,000. Anissa qualifies for a

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Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

Let original price be x

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2 years ago

Find number a and k so that x-2 is afactor<br>OF F(x)=x4-2ax tax-<br>X+k and F(-1)=3

Slav-nsk [51]

Question:

Find numbers a and k so that x-2 is a factor of

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and

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Answer:

$k = -2$ and $a=1$

Step-by-step explanation:

Given

$f(x)=x^4-2ax^3+ax^2- x+k$

$Factor:\ x - 4$

$f(-1)=3$

Required

Find a and k

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Substitute -1 for x

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Substitute 3 for f(-1)

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Collect Like Terms

$3 - 2 = 3a + k$

$1 = 3a + k$

Also:

If $x - 2$ is a factor, then

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Substitute 2 for x and 0 for f(x)

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$0 = 2^4 - 2a * 2^3 + a * 2^2 - 2 + k$

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Collect Like Terms

$2 - 16 = - 12a + k$

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$k = 12a - 14$

Substitute 12a - 14 for k in $1 = 3a + k$

$1 = 3a + 12a - 14$

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Collect Like Terms

$15a = 1 + 14$

$15a = 15$

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