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Dmitrij [34]
3 years ago
14

Which equation in point-slope form contains the point (4, –1) and has slope 3?

Mathematics
1 answer:
Andrew [12]3 years ago
4 0

Answer:

y+1=3(x-4)

Step-by-step explanation:

Hi there!

We are given a slope of 3 and a point (4,-1).

We need to find the equation of the line in point-slope form

Point-slope form is given as y-y1=m(x-x1), where m is the slope, and (x1,y1) is a point

We have all of the needed information to substitute into the formula

First, let's label the values of everything to avoid any confusion

m=3

x1=4

y1=-1

now substitute into the formula *remember, the formula has SUBTRACTION, and we have a NEGATIVE number, so we'll end up subtracting a negative*

y--1=3(x-4)

simplify

y+1=3(x-4)

That's it!

Hope this helps :)

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Which points lie on the line whose equation is -8x - 6y - 7 = 17? Select ALL that apply Response : (3,0) (-2,-1) (0,-4) (-9,6) (
Reika [66]

Answer:

(0;-4)

(-6;4)

Step-by-step explanation:

-8x - 6y - 7 = 17

-8x-6y-24=0

y=-(4x)/3-4

(3;0)

-(4*3)/3-4=8

8≠0

(-2;-1)

-(4*(-2))/3-4=-4/3

-4/3≠-1

(0;-4)

-(4*0)/3-4=-4

-4=-4

(-9;6)

-(4*(-9))/3-4=8

8≠6

(-6;4)

-(4*(-6))/3-4=4

4=4

3 0
3 years ago
Solve the equation 0.4+0.5=-4.7-0.6z
Charra [1.4K]
0.9 = -4.7 - 0.6z
0.9 + 4.7 = -0.6z
5.6 = -0.6z
z = 5.6 ÷ -0.6
z = -9.33
7 0
3 years ago
Solve x^2=12x-15 by completing the square. which is the solution set of the equation?​
svlad2 [7]

Use the formula  (b/2)^2 in order to create a new term. Solve for  x  by using this term to complete the square.

Exact Form:

x  =  ±√21  +  6

Decimal Form:

x  =  10.58257569…, 1.41742430…

____

I hope this helps, as always. I wish you the best of luck and have a nice day, friend..

6 0
3 years ago
PLZ HELP ASAP WILL MARK BRAINLIEST !!!!!Either Table C or Table D shows a proportional relationship.
NNADVOKAT [17]

Answer:

Table C

Step-by-step explanation:

Now where is my Brainliest XD

7 0
2 years ago
Read 2 more answers
Find the area and perimeter of the shape below. Help plzzz.
kozerog [31]
Find the area of each shape and add.Let's start with the first semi-circle(half-circle)
If the area of a circle is πr² , then the area of a semi-circle is 1/2πr² where is 22/7 or 3.14, and r is the radius which is 1.8 meters
A=1/2πr²
A=1/2*22/7*1.8*1.8
A=5.09 m²(rounded to nearest hundredth)
Since the semi-circles are two and have the same radius, multiply the area of the first one by two or go through the same process again.
So 5.09 *2=10.18meters square is the area of the two semi-circles
Now, let's find the area of a rectangle  which is length times width, where length is 6 meters and width is (1.8+1.8, because 1.8 is half the width)=3.6 meters
A=l*w
A=6*3.6
A=21.6meters square
Therefore the area of the shape is 10.18m²+21.6m²=219.888m²
4 0
3 years ago
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