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MAVERICK [17]
3 years ago
15

A line passes through (2, −1)(2, −1) and (4, 5)(4, 5).

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
4 0
<span><span><span><span>1. <span> Find the slope and y-intercept for the equation 2y = -6x + 8.</span></span><span>First solve for "y =":     <span> y</span> = -3x + 4
Remember the form:     <span>y </span>= mx + b
Answer:  the slope (m) is -3
                the y-intercept (b) is 4</span></span><span><span>3.  Given that the slope of a line is -3 and the line passes through the point (-2,4), write the equation of the line. </span><span>The slope:  m = -3
The point (x<span>1 </span>,y1) = (-2,4)
Remember the form:  y - y1 = m ( x - x1)
Substitute:                 <span>y </span>- 4 = -3 (x - (-2))
ANS.                       <span> y</span> - 4 = -3 ( x + 2)   

If asked to express the answer in "y =" form:             y - 4 = -3<span>x </span>- 6
                          y = -3x - 2 </span>
</span></span><span><span><span>2.  <span>Find the equation of the line whose slope is 4 and the coordinates of the y-intercept are (0,2).</span></span><span>In this problem m = 4 and b = 2.
Remember the form:  y = <span>mx </span>+ <span>b </span>and that<span> b</span>is where the line crosses the<span> y-</span>axis.
Substitute:          <span> y = 4x + 2    </span></span> </span><span><span>4.  Find the slope of the line that passes through the points (-3,5) and (-5,-8).</span><span>First, find the slope:    

Use either point:  (-3,5)
Remember the form:  <span>y </span>- y1 = m ( x - x1)
Substitute:  y - 5 = 6.5 ( x - (-3))
                  <span>y </span>- 5 = 6.5 (x + 3)  Ans.</span> 
</span></span></span>
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$160/5 or $315/9 which is the better deal
professor190 [17]

Answer:

$160/5

Step-by-step explanation:

160/5 would be 32 and 315/9 would be 35. 32 is less than 35 so $160/5 would be the better deal.

3 0
3 years ago
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The ratio of boys to girls in Ms. smith’s class is 3 to 4. If there are 12 boys, how many girls are there?
Lorico [155]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ There will be 16 girls.

The relationship is x4. If we multiply 3 x 4, we get 12. What we do to one number we do to the other so 4 x 4 = 16.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

4 0
3 years ago
To repair a leak a plumber needs a pipe that is within 3/4 of an inch of 32 inches. He
Mrrafil [7]

Express all possible lengths for this scrap as a compound inequality will be L ≤ 24.

<h3>What is inequality?</h3>

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

To repair a leak a plumber needs a pipe that is within 3/4 of an inch of 32 inches.

⇒ 3/4 x 32

⇒ 24

He already has a 48-inch pipe.

Let the variable L represents the length of the extra (scrap) that is removed from the 48-inch pipe will be

Then express all possible lengths for this scrap as a compound inequality will be

L + 24 ≤ 48

       L ≤ 48 - 24

       L ≤ 24

More about the inequality link is given below.

brainly.com/question/19491153

#SPJ1

3 0
2 years ago
Need help with 9 please
Debora [2.8K]

Answer:

x = 5

y = 1

Step-by-step explanation:

So move 2y from the second equation to the other side of the equals sign

2x +3y = 13

x = 3 + 2y

From here substitute X into the first equation

2(3 + 2y) + 3y = 13

Distribute

6 + 4y +3y = 13

Combine like terms and solve for y

7y = 7

y = 1

insert result into the original equation.

x-2(1) = 3

x - 2 = 3

x = 5

insert into other equation to check work

2(5) + 3(1) = 13

10 + 3 = 13 correct

6 0
3 years ago
What number is 30% of 20?<br><br><br>(will give Brainliest)
kirill [66]

In order to get the answer you will have to divide 30 by 100 then divide the number you get from that by 20 to receive your answer.

20/x=100/30

(20/x)*x=(100/30)*x      

20=3.33333333333*x      

(3.33333333333) to get x

20/3.33333333333=6

=6

Therefore your answer is "6."

Hope this helps

6 0
3 years ago
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