The answer for number two

2 answers:

7 0

Answer:

Step-by-step explanation:

m = y2-y1/x2-x1

m = 12-4/15-5

m = 8/10

m = 4/5

6 0

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Find 2 points to plug into this equation.

Let U.S. dollar be the x values

Let British pound by the y values

I will use the points(x,y):

(5, 4.0) and (10, 8.0)

(5, 4.0) = (x₁ , y₁)

(10, 8.0) = (x₂ , y₂)

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m=\frac{8.0-4.0}{10-5}$

$m=\frac{4.0}{5}$

Your answer is A

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KengaRu [80]

Answer:

x-intercepts = 1,2, and 4, y-intercept = -8

Step-by-step explanation:

x^3 - 7x^2 - 14x - 8 in factored form is equal to (x-1)(x-2)(x-4).

Solving for x-intercepts:

We are actually able to solve for all x-intercepts without the given factor. But since we are given one of the factors, our job becomes much easier.
Using synthetic division, or long division, we factor out the x-intercept 4. Which leaves us with the polynomial x^2 - 3x + 2.
From here we can separate the polynomial into two binomials.
x^2 - 3x + 2 = (x-1)(x-2). Giving us all 3 x-intercepts.
Using Descartes' rules we can identify before even starting the problem how many real x-intercepts there are (Not needed for this problem).

Solving for y-intercept:

The y-intercept is always the coefficient that does not have any assigned x-variables.
The coefficient is -8, thus the y-intercept.
If unsure of the y-intercept, you can always plug in x = 0. Solving for the y-intercept will give you the value of f(0).
If there is no coefficient, the y-intercept is equal to zero.

4 0

2 years ago

Gelneren [198K]

13+13=26
9+9=18
18+26=44

Hope this helps :)

3 0

2 years ago

Temka [501]

Answer:

x=3.