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3 years ago

Why it is important to find at least 3 ordered pair solutions when graphing linear equations?

Mathematics

2 answers:

mash [69]3 years ago

7 0

If you have 3 ordered pairs, you can start a basic line if it has one or the same slope.

stepladder [879]3 years ago

3 0

Graph a system of linear equations on the coordinate plane and identify its solution.

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Solve for w. - 2w – 14= 2(w+1) Simplify your answer as much

snow_tiger [21]

Answer:

w = -4

Step-by-step explanation:

Step 1: Distribute

-2w - 14 = 2(w + 1)

-2w - 14 = 2w + 2

Step 2: Add 2w to both sides

-2w - 14 + 2w = 2w + 2 + 2w

-14 = 4w + 2

Step 3: Subtract 2 from both sides

-14 - 2 = 4w + 2 - 2

-16 = 4w

Step 4: Divide both sides by 4

-16 / 4 = 4w / 4

-4 = w

Answer: w = -4

7 0

3 years ago

Read 2 more answers

Diego says that the product of 0.51 x 2.427 will have five decimal places. is Diego correct.

zlopas [31]

Yes. There are 2 decimal places in .51 and 3 in 2.427.
So there would be a total of 5 decimal places.

5 0

3 years ago

Read 2 more answers

Two of the interior angles of a triangle are 50° and 75°. Which of the following could be a measure of an exterior angle of the

Karolina [17]

Answer:

Step-by-step explanation:

so, 50+75=125.

180-125=55.

There can be-

130, 95, and 125

8 0

2 years ago

Help! I really need to pass!

Dmitriy789 [7]

Answer:

$\huge{ \boxed{ \bold{ \sf{y = - 2x + 6}}}}$

☥ $\tt{Question} :$

Write the equation of a line in slope - intercept form that has a slope of -2 and passes through the point ( - 1 , 8 ).

☥ $\tt{Step - \: by \: - \: step \: explanation}$

☪ $\underline{ \underline{ \text{Given : }}}$

Slope ( m ) = -2
Given point = ( - 1 , 8 )

☪ $\underline {\underline{ \text{To \: find}}} :$

Equation of a line in slope - intercept form ( i.e y = mx + c )

Let the point ( -1 , 8 ) be ( x₁ , y₁ )

☪ $\underline{ \underline{ \text{Solution}}} :$

$\underline{ \sf{y - y1 = m(x - x1)}}$

plug the known values :

↦ $\text{y - 8 = - 2 \{ x - ( - 1) \} }$

↦ $\text{y - 8 = - 2(x + 1)}$

Distribute -2 through the parentheses :

↦ $\text{y - 8 = - 2x - 2}$

Transpose 8 to right hand side and change it's sign

↦ $\text{y = - 2x - 2 + 8}$

↦ $\boxed{ \text{y = - 2x + 6}}$

And we're done !

Hope I helped!

♡ Have a wonderful day / night ツ

~TheAnimeGirl ♪

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4 0

2 years ago

Read 2 more answers

An angle measured 10 degrees less than the measure of its complementary angle. Find the measure of both angles

Mazyrski [523]

Answer:

The measure of the angles are 40 degrees and 50 degrees

Step-by-step explanation:

Let

x ----> the measure of one angle in degrees

y ----> the measure of the complementary angle in degrees

we know that

If two angles are complementary, then their sum is equal to 90 degrees

$x+y=90$ ----> equation A

we have that

$x=y-10$ ----> equation B

Substitute equation B in equation A and solve for y

$(y-10)+y=90\\2y-10=90\\2y=100\\y=50$

Find the value of x

$x=50-10=40$

therefore

The measure of the angles are 40 degrees and 50 degrees

3 0

2 years ago