All categories

3 years ago

What is the equation of the line that passes through the points (-2,3) and (1,9)?

Mathematics

2 answers:

oksian1 [2.3K]3 years ago

8 0

Answer:

Solution given:

(x1,y1)=(-2,3)

(x2,y2)=(1,9)

we have

equation of line

(y-y1)= $\frac{y2-y1}{x2-x1}$ (x-x1)

(y-3)= $\frac{9-3}{1+2}$ (x+2)

y-3=2x+4

2x-y+4+3=0

2x-y+7=0;is a required equation.

stellarik [79]3 years ago

5 0

The answer is y= -3x - 3

hope that helps!

You might be interested in

Write an inequality that represents eight less than 3 times a number is more than 22

SCORPION-xisa [38]

Answer:

3x-8>22

Step-by-step explanation:

3 times a number = 3x

8 less = -8

more than 22 = >22

Put them together and you get:

3x-8>22

8 0

3 years ago

Find the center and radius of the attached circle that goes through the point (-4,-1)

murzikaleks [220]

Answer:

I think the Radius is 3. I'm not really sure, don't quote me on it. K?

Step-by-step explanation:

3 0

3 years ago

7. The dimensions of a lawn shaped like a trapezoid are given in meters.

Veronika [31]

Answer:D:102

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

M is the incenter of triangle ABC. Find the lengths of MD and DC. (Look at pic)

Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

In this problem

$MD=ME=MF$ ------> is the radius of a circle inscribed inside the triangle

we have that

$MF=9\ units$

therefore

$ME=9\ units$

$MD=9\ units$

Step 2

Find the length of DC

we know that

In the right triangle MDC

Applying the Pythagoras theorem

$MC^{2} =MD^{2}+DC^{2}$

we have

$MD=9\ units$

$MC=15\ units$

substitute

$15^{2} =9^{2}+DC^{2}$

$DC^{2}=225-81$

$DC=\sqrt{144}\ units$

$DC=12\ units$

6 0

3 years ago

Complete the ordered pair for the given equation. (_,-1);y=-3/5x-7

Fiesta28 [93]

Hi!

So for this problem, we're given the y-coordinate and we can plug that in for y in the equation. So let's do that

-1 = -3/5x - 7
6 = -3/5x
30 = -3x
-10 = x

The missing coordinate would be x, assuming that the equation was y = (-3/5)x - 7

3 0

3 years ago