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1 year ago

Drag the red and blue dots along the x-axis and y-axis to graph -2x+2y=8

Mathematics

1 answer:

Sonja [21]1 year ago

3 0

Given:

An equation -2x + 2y = 8.

To find:

The graph of the equation.

Solution:

First find two points that satisfies the equation, that means the line passes through the given points.

At x = 0,

$\begin{gathered} -2(0)+2y=8 \\ 2y=8 \\ y=4 \end{gathered}$

At y = 0,

$\begin{gathered} -2x+2(0)=8 \\ -2x=8 \\ x=-4 \end{gathered}$

So, the two points are (0, 4) and (-4, 0).

Plot these two points and join them to draw the graph of the equation as follows:

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Find the 50th term sequence 5 , -2 , -9 , -16

Anni [7]

5 - 7 = - 2 ;
- 2 - 7 = - 9 ;
-9 - 7 = -16 ;
"common difference" d is - 7 ;
The n-th term of an arithmetic sequence is of the form <span>an = a1 + (n – 1)d ;
</span>a50 = 5 + 49 × ( - 7 ) = 5 - 343 = - 338;

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3 years ago

Read 2 more answers

2 sin x cos x = tan x

eimsori [14]

Answer:

If $sin x = 0$ we get $2 (0) (\pm1) = 0$ which is true. so we have a first set of solutions given by

$x= 0; x = \pi$ ;

Else, if $sin x \ne 0$ we can divide both sides by it and we get

$2 cos x = \frac 1 {cos x} \rightarrow 2cos^2x =1 \rightarrow cos^2x =\frac12\\cos x= \pm \frac{\sqrt2}2$

Which gives us a second set of solutions given by $x= \frac{\pi}4;x= \frac{3\pi}4; x= \frac{5\pi}4;x= \frac{7\pi}4$ ;

We can group all solutions (doesn't matter, but it's more elegant!) by writing

$x= k\frac{\pi}4; k\in \{0,1,3,4,5,7\}$

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2 years ago

What percentage of students attend either public school or college

elena-s [515]

The percentage of students attend either public school or college will be 90%.

<h3>How to illustrate the percentage?</h3>

Let the students in public school be 40%

Let the students in college be 50%

Let those who stay at home be 10%

Therefore, the percentage of students attend either public school or college will be:

= 40% + 50%

= 90%

Therefore, the percentage of students attend either public school or college will be 90%.

Learn more about percentages on:

brainly.com/question/24304697

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In a school, the following information are given:

Public school students = 40

Number of those in college = 50

Number of those at home = 10

What percentage of students attend either public school or college?

a. 90%

b. 50%

c. 40%

d. 10%

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2 years ago

The longest side of an acute isosceles triangle is 12 centimeters. Rounded to the nearest tenth, what is the smallest possible l

anygoal [31]

Answer:

Its 8.5 just took the test

Step-by-step explanation:

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4 years ago

I need to know what the equation would be for number 18

Firlakuza [10]

If we call the Florida one f and the Texas one t, the formula is

f = t - 72772

57662 = t - 72772, if we fill in what we know f is.

Now to find t, you can manipulate the equation as:

t = 57662 + 72772

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4 years ago