All categories

3 years ago

Complete the equation of the line through (2,1) and (5,-8) WORTH 20 POINTS

Mathematics

2 answers:

ale4655 [162]3 years ago

7 0

Answer:

First we calculate the slope (which is called "m".

Slope = m = (Y2 -Y1) ÷ (X2 -X1)

m = (-8 -1) / (5 -2) = -9 / 3 = -3

We next fill in this equation: b = y -mx

We know m = -3 and we can choose a point (2, 1) to calculate "b"

b = 1 --3 * 2 b = 7

Putting this into y = mx +b

y = -3x +7

s2008m [1.1K]3 years ago

6 0

This is pretty much what it is- when you do it try to get your lines straighter

You might be interested in

Solve for all values of p:

Alchen [17]

Answer:

p = - 5, p = - 1

Step-by-step explanation:

Given

$\frac{3p}{p-5}$ - $\frac{2}{p+3}$ = $\frac{p}{p+3}$

Multiply through by the LCM of (p - 5)(p + 3)

3p(p + 3) - 2(p - 5) = p(p - 5) ← distribute parenthesis

3p² + 9p - 2p + 10 = p² - 5p

3p² + 7p + 10 = p² - 5p ( subtract p² - 5p from both sides )

2p² + 12p + 10 = 0 ← divide through by 2

p² + 6p + 5 = 0 ← in standard form

(p + 1)(p + 5) = 0 ← in factored form

Equate each factor to zero and solve for p

p + 1 = 0 ⇒ p = - 1

p + 5 = 0 ⇒ p = - 5

3 0

2 years ago

How many centimeters are there in 1.23 x 10 to the negative 6th power

pashok25 [27]

I think the answer is 0.123 cm

4 0

3 years ago

What is the slope? Please help me outt!

Ira Lisetskai [31]

Answer:

The slope is m = -1

Step-by-step explanation:

Use the slope formula:

m=y2-y1/x2-x1

= -0-(-2)/-2-0

= 2/-2

= -1

Hope this helps!!!

7 0

3 years ago

Read 2 more answers

66.6 reoccurring as a fraction .

Setler [38]

Answer:

66 2/3 as a mixed number or 200/3 as an improper fraction.

Step-by-step explanation:

That would be 66 2/3.

0.6 recurring is 2/3.

8 0

3 years ago

Read 2 more answers

How do I find x and y

Alja [10]

X^2=3^2+7^2-*3*7cos52
x=6.083

7^2=3^2+6.08^2-2*3*6.08cosy

solving for y
y=94.71

3 0

3 years ago