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3 years ago

Write an equation in slope-intercept form of the line that passes through (-1,4) and (0,2)

Mathematics

2 answers:

noname [10]3 years ago

6 0

Answer:

y = -2x + 39

Step-by-step explanation:

2 - 4 = -2 (with negative numbers graphs help a lot more)

0 - -1 (since there are two negatives together you change both of the signs to their opposite so they both become positive)

0 + 1 = 1

-2/1 = -2 because a negative divided by a positive is a negative

I found the y-intercept by substituting one of the points into y=mx+b

kirza4 [7]3 years ago

5 0

Answer:

the answer is y= -2x+2

Step-by-step explanation:

I hope it's right

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If csc x = −5, find csc(−x) find the period and horizontal shift

ella [17]

Answer:

$\csc (-x) = - \csc x = - ( - 5) = 5$

Period is 2π

Horizontal shift = 0

Step-by-step explanation:

We know that $\sin (-x) = - \sin x$ and as $\csc x = \frac{1}{\sin x}$ , so, we can write $\csc (-x) = - \csc x$

Therefore, the if $\csc x = - 5$ then $\csc (-x) = - \csc x = - ( - 5) = 5$ (Answer)

Now, the period of $\csc x$ is 2π, hence the period of $\csc (- x)$ is also 2π. (Answer)

Again. $\csc ( - x) = \csc (-x + 0)$ , hence, the horizontal shift of $\csc (- x)$ is 0. (Answer)

6 0

3 years ago

6+6+75millllllliioooon

Mice21 [21]

Answer:

75,000,012

Step-by-step explanation:

enjoy, i guess

6 0

3 years ago

The fastest that a seahorse can travel is 2640 feet per hour.what is its top speed in miles per hour

miv72 [106K]

Answer:

½ mph

Step-by-step explanation:

1 mi. = 5280 ft.

2640⁄5280 = ½

I am joyous to assist you anytime.

4 0

3 years ago

What is the value of the expression-7 3/4 + 3 1/2

Volgvan

Answer:

45/4 or 11.25 or 11 1/4

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the error with this proof and explain how it mat be corrected in order to clearly prove the equation.

enyata [817]

Answer:

Step-by-step explanation:

It is true that for any given odd integer, square of that integer will also be odd.

i.e if $m$ is and odd integer then $m^{2}$ is also odd.

In the given proof the expansion for $(2k + 1)^{2}$ is incorrect.

By definition we know,

$(a+b)^{2} = a^{2} + b^{2} + 2ab$

∴ $(2k + 1)^{2} = (2k)^{2} + 1^{2} + 2(2k)(1)\\(2k + 1)^{2} = 4k^{2} + 1 + 4k$

Now, we know $4k^{2}$ and $4k$ will be even values

∴ $4k^{2} + 1 + 4k$ will be odd

hence $(2k + 1)^{2}$ will be odd, which means $m^{2}$ will be odd.

7 0

3 years ago