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3 years ago

4 question in one 65 points

Mathematics

2 answers:

jeka943 years ago

6 0

Q6.

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

We have: slope m = 3, y-intercept (0, 4) → b= 4

<h3>Answer: y = 3x + 4</h3>

Q7.

2x + 4y = 4 |subtract 2x from both sides

4y = -2x + 4 |divide both sides by 4

y = -0.5x + 1

Only second graph has y-intercept = 1.

<h3>Answer: The second graph.</h3>

Q8.

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have

$(-16,\ 8)\to x_1=-16,\ y_1=8\\(4,\ -2)\to x_2=4,\ y_2=-2$

Substitute:

$m=\dfrac{-2-8}{4-(-16)}=\dfrac{-10}{20}=-\dfrac{1}{2}\\\\y-8=-\dfrac{1}{2}(x-(-16))\\\\y-8=-\dfrac{1}{2}(x+16)$

<h3>Answer: The first equation.</h3>

Q9.

It's a vertical line. The equation of a vertical line is x = <em>a</em>, where <em>a</em> is any real number.

<h3>Answer: x = -4</h3>

RSB [31]3 years ago

5 0

Answer:

Answer = y = 3x + 4

Answer = The second graph

Answer = The first equation.

Answer = -4

~batmans wife dun dun dun...aka ~serenitybella

(i drew each answers explanation but it wont let me upload the pic)

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ale4655 [162]

Answer:

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Step-by-step explanation:

The total angles of a triangle is 180°

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3 years ago

Ed turns 34 and deposits $100 at the end of each month in IRA that earns 9% interest p.A compounded monthly. Find how much will

pickupchik [31]

Answer:

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Step-by-step explanation:

Giving the following information:

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3 years ago

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maks197457 [2]

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3 years ago

Read 2 more answers

Please Help!!

algol13

When you see questions of this nature, test the individual inequalities and look out for their intersection.

For
$y < \frac{2}{3} x$
Choose a point in the lower or upper half plane created by the line
$y = \frac{2}{3} x$
The above line is the one which goes through the origin.

Now testing (1,0) yields,

$0 < \frac{2}{3} (1)$
That is,

$0 < \frac{2}{3}$
This statement is true. So we shade the lower half of
$y = \frac{2}{3} x$

For
$y \geqslant - x + 2$
We test for the origin because, it is not passing through the origin.

$0 \geqslant - (0) + 2$
This yields
$0 \geqslant 2$
This statement is false so we shade the upper half.

The intersection is the region shaded in B. The top right graph

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4 years ago

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natulia [17]

Answer:

x = 4

Step-by-step explanation:

∆ABC ~ ∆DEF

--> AB/DE = BC/EF

--> x / 3 = 8 / 6

--> x / 3 = 4 / 3

--> x = 4

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3 years ago