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3 years ago

20 points, asap please!

Mathematics

2 answers:

labwork [276]3 years ago

8 0

F(x) is -4, g(x) is 4, h(x) is 1.

For the f(x), it is in vertex form, which is a(x-h)^2+k. The a.o.s. Is the opposite of h, therefore, it’s -4.

For the g(x), it is in standard form, which is ax^2 + bx + c, you can use the formula -b/2a to find the a.o.s. So, -(-16)/2(2) is 4.

For the h(x), just look at the graph and find where the middle of the parabola is. When you go to 1 on the x-axis and draw a vertical line, it cuts the parabola into half. 1 is the a.o.s.

Note: f(x), g(x), and h(x) can also be 0 or y.

devlian [24]3 years ago

4 0

H(x)=-3,1 I think hope this helps

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The following scatter plot shows the number of page views for a popular website and how many people signed up to receive emails

My name is Ann [436]

Answer:

See Explanation.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

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Parenthesis
Exponents
Multiplication
Division
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Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
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Algebra I

Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Slope-Intercept Form: y = mx + b

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b - y-intercept

Linear Regression

Step-by-step explanation:

We can draw any best line of fit, as long as it is reasonable around the points that are given.

We can just take 2 points and use slope formula and Slope-Intercept Form to find the equation for the best line of fit.

Using Linear Regression, we can determine the true best line of fit using graphing utilities.

Finding the best line of fit

Define 2 points

Point (21600, 205)

Point (27000, 290)

Find slope m

Substitute in point [SF]: $\displaystyle m=\frac{290-205}{27000-21600}$
[Fraction] Subtract: $\displaystyle m=\frac{85}{5400}$
[Fraction] Simplify: $\displaystyle m=\frac{17}{1080}$

Find equation

Define equation [SIF]: $\displaystyle y = \frac{17}{1080}x + b$
Substitute in point: $\displaystyle 290 = \frac{17}{1080}(27000) + b$
Multiply: $\displaystyle 290 = 425 + b$
Isolate y-intercept b: $\displaystyle -135 = b$
Rewrite: $\displaystyle b = -135$
Redefine equation: $\displaystyle y = \frac{17}{1080}x - 135$

Slope-Intercept Form tells us that our slope m = $\displaystyle \frac{17}{1080}$ and our y-intercept $\displaystyle b = -135$ .

Setting this as function f(x), we can see from the graph that it is extremely accurate (Blue line).

Using Linear Regression

Depending on the graphing calc you have, the steps may be different.

Using a graphing calc, we can use statistics and determine the best best line of fit.

When we determine the values, we should see that our equation would be g(x) (Green Line).

Credit to Lauren for collabing w/ me in graphing.

6 0

3 years ago

which of the following equations represents the line that that is graphed on the coordinate grid below

Stells [14]

Answer:

im in 8th grade and im getting your questions

Step-by-step explanation:

3 0

3 years ago

Change 0.275 to a fraction

goldenfox [79]

Well, the number is decimal form, is in the thousandths place, so the denominator, would be 1000's:
0.275 = 275⁄1000 
Then, you have to Simplify 275⁄1000 In which, you would get:  11⁄40 

8 0

3 years ago

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dmitriy555 [2]

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6 0

3 years ago

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8(y+4)-2(y-1)=70-3y help pls

jeka57 [31]

Answer:

y = 4

Step-by-step explanation:

8(y+4)-2(y-1)=70-3y

8y+32-2y+2=70-3y

Grouping of like terms

8y-2y+3y=70-32-2

9y=36

Divide both sides by 9

9y/9 = 36/9

9 cancels itself and 9.

y=36/9

y=4

Therefore, y = 4.

Hope it helps.

If so, mark as brainliest.

8 0

3 years ago

Read 2 more answers