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
Ivan
3 years ago
14

4. Is the point (3,-4) a solution to the given system? Justify your answer.

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0

Answer: No, it is not a solution

==========================================================

Explanation:

The point (3,-4) means that x = 3 and y = -4 pair up together

Let's plug these x,y values into each equation

Starting with the first equation, we get,

y = 4x-16

-4 = 4(3)-16 ... x replaced with 3; y replaced with -4

-4 = 12-16

-4 = -4 .... this is a true statement

Repeat for the second equation

y = 2x-6

-4 = 2(3)-6

-4 = 6-6

-4 = 0 ... this is false

Since we get a false statement, this means (3,-4) is not on the line y = 2x-6, which means that overall (3,-4) is not a solution to the system of equations. The point (3,-4) must make both equations true for it to be a solution.

You might be interested in
A sales manager collected data on annual sales for new customer accounts and the number of years of experience for a sample of 1
Pavlova-9 [17]

Answer:

(1)-

b1 =~3.4

bo= ~ 82.8

(2)- ý=[82.8]+[3.4] x

(3)- The change in annual sales ($1000) for every year of experience is= 3.4

(4)-r^2=~ 0.847

Estimated annual sales= $110514

Step-by-step explanation:

(1)- b1 = 3.4606

=~3.4

bo = 82.8296

= ~ 82.8

(2)-

ý=[82.8]+[3.4] x

(3)-The change in annual sales ($1000) for every year of experience is= 3.4

(4)- r^2 = 0.84776

=~ 0.847

Percentage of the variation in annual sales can be explained by the years of experience

of the salesperson 84.7%.

Estimated annual sales

= 82.8296 + 3.4606 × 8 ($ 1000).

= 110.5144 ( $1000)

= $ 110514:4

= $110514

5 0
3 years ago
Can someone help me on this question
andre [41]

Answer:

The answer is about 32,000.

Step-by-step explanation:

If you multiply 3.2 by 10, for 10 years, you get 32 percent. From there, if you multiply 25,000 by 0.32, you get 8000. If you add 25,000 to 8000, you get about 32,000.

5 0
3 years ago
What is the slope of the line equation 7x-3y=21
kramer
Equation: 7x - 3y = 21

3y = 7x - 21

Divide both sides by 3, 

y = 7/3x - 7

Compare it with principle equation, y = mx + c

Here, slope (m) = 7/3

In short, Your Answer would be: 7/3

Hope this helps!
8 0
3 years ago
FOIL backwards #5 please & thank you :)
larisa86 [58]


(5x+7)(2x−3) is the answer
8 0
2 years ago
Read 2 more answers
What’s the answer for y= (x-2)^2 +2 {x<4.5}
stealth61 [152]

Answer:

x<4.5

Step-by-step explanation:

y =(x-2)^2 +2 {x<4.5}

add the power and then divide by 2 you get 4.5

8 0
3 years ago
Other questions:
  • What are the factors of the quadratic function represented by this graph?
    13·1 answer
  • How do you solve -.18 ÷ .03
    14·2 answers
  • Answer please I’ll give brainlyest
    8·1 answer
  • The diameter of a sphere is 16 cm. The volume of the sphere is
    5·1 answer
  • Tell whether x and y are proportional<br> x- 1, 2, 3, 4<br> y- 3, 4, 5, 6<br> Explain your reason
    7·2 answers
  • a building that is 20 meters tall casts a shadow that is 5 meters long. at the same time a tree casts a shadow that is 8 meters
    9·1 answer
  • Can someone plz solve this for me
    15·2 answers
  • The height of
    7·1 answer
  • Lily is making a snack mix for her class.
    5·1 answer
  • The half-life of a radioactive kind of neptunium is 2 days. If you start with 736 grams of it, how much will be left after 6 day
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!