1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Feliz [49]
3 years ago
9

can anyone help me with these? I'm having a lot of trouble and I'm extremely behind... I need to catch up badly!!! i have been a

t the hospital and have missed a lot of work :( you can just answer a couple if you want...

Mathematics
1 answer:
TiliK225 [7]3 years ago
6 0

Answer:

Step-by-step explanation:

5 and 6 are the same, so I will do one of those and you can use the example to do the other one.  

Slope-intercept form is y = mx + b.  If we have 2 points and nothing else, we can use those 2 points in the slope formula to find the slope (the m value in the equation) and then plug that in with either one of the points to get the equation.  The slope formula is:

m=\frac{y_{2} -y_{1} }{x_{2}-x_{1}  }

Using our points in question 5:  (2, 4) (5, 4)

m=\frac{4-4}{5-2} =\frac{0}{3}=0 So m = 0.  Now pick a point and use it in the equation along with the m value to solve for b.  I will use (2, 4):

4 = 0(2)+b and

4 = 0 + b so

b = 4.  

Now we have m = 0 and b = 4 so we fill in the equation with that info:

y = 0x + 4 or simplifying,

y = 4

For question 7 they want the line parallel to y = 3x + 6 that goes through (-10, 2.5).  For a line to be parallel to another line, their slopes have to be identical.  The slope in y = 3x + 6 is 3.  So the slope of the "new" line is going to be 3 as well.  Now we will use that slope and the given point to solve for b, just like in #5:

2.5 = 3(-10) + b and

2.5 = -30 + b so

b = 32.5

Now we will fill in:

y = 3x + 32.5

For question 8 they want the line perpendicular to y = -4x - 2 that goes through (-16, -11).  For a line to be perpendicular to another line, their slopes have to be opposite reciprocals.  Opposite meaning the sign is opposite (positive becomes negative and negative becomes positive), and reciprocal meaning the fraction is flipped upside down.  The slope in our line is -4.  That means that the perpendicular slope is positive 1/4.  Using that along with our point, we will again solve for b:

-11=\frac{1}{4}(-16)+b which simplifies to

-11 = -4 + b so

b = -7

Now we fill in:

y=\frac{1}{4}x-7

For question 8, in order to find the line parallel to the given line, you need to know the slope.  In the form it is currently in, we do not know the slope.  We need to put it into slope-intercept form to find the slope, then we will proceeed as above.  If

x + 4y = 6, then

4y = -x + 6 and, dividing by 4,

y=-\frac{1}{4}x+\frac{3}{2}

(The 3/2 is reduced from 6/4)

Now we can see the slope is -1/4.  We use that along with the point (-8, 5) to solve for b:

5=(-\frac{1}{4})(-8)+b which simplifies to

5 = 2 + b so

b = 3

Now we fill in, keeping in mind that lines are parallel when they have the exact same slope:

y=-\frac{1}{4}x+3

You might be interested in
I also need help with this one
icang [17]
It is c.

explanation:

20+130+h =180

when you solve you get h=50

130+g = 180

g= 50

50+60+f = 180

f=70
7 0
3 years ago
Read 2 more answers
What is the inequality shown in the graph
rodikova [14]

It must be ≤ instead of ≥.

y ≤ - 3·x + 4

3 0
3 years ago
A company design a logo using a kite figure around the letter t
aliina [53]
The answer is 192sq.cm.
REASONING: This would be by multiply the length by the height in order to get the area. 12*19 is equal to 192.
PLEASE MARK BRAINIEST!! Have a good day!
6 0
3 years ago
Which of the following are like terms to the term 2x (which more than one apply?
GuDViN [60]
-2x and 4x
and x2 so tats it
6 0
3 years ago
Can you graph 6=6? infinite solutions
ad-work [718]

Answer:

it is infinitive solutions because if you do the work you'll find that its infinite solutions...bye rate 1 thx rate more if you think i was wrong just kidding ik im right just say if its helpful ...thx

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Some of the children at a school arrive by car.
    13·2 answers
  • The price of an 8-minute phone call is $1.20. What is the price of a 17-minute phone call?
    11·1 answer
  • The cost for decorations and the disc jockey for the senior class dance was $500. The class members sold 325 tickets and made a
    10·1 answer
  • HELP ASAP!!!!!!
    6·1 answer
  • Plz help will give brainiest to the first person who answers this correctly plz helpppp!!!!
    15·1 answer
  • What is the slope of the line in the graph?<br> X<br> Please help
    7·1 answer
  • What is the coordinate point of this equation?
    6·2 answers
  • Find the value of x. Round to the<br> nearest tenth.<br> 35<br> 12<br> х<br> X<br> ?
    12·1 answer
  • Please help I did not get what I was supposed to do
    9·2 answers
  • Please answer this thoroughly.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!