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
fiasKO [112]
3 years ago
6

Example: y = -2x and y = x + 3

Mathematics
1 answer:
pogonyaev3 years ago
8 0
Yes because if you plug in (-1,2) to each equation you get a true statement.

You might be interested in
Is anybody better at this then I am ?
lbvjy [14]

Answer:

hmmm

Step-by-step explanation:

8 0
3 years ago
Find a quadratic polynomial with integer coefficients which has x = 2/9, ± SQRT23/9 as its real zeros.
melomori [17]

Answer:

The quadratic polynomial with integer coefficients is y = 81\cdot x^{2}-36\cdot x -19.

Step-by-step explanation:

Statement is incorrectly written. Correct form is described below:

<em>Find a quadratic polynomial with integer coefficients which has the following real zeros: </em>x = \frac{2}{9}\pm \frac{\sqrt{23}}{9}<em>. </em>

Let be r_{1} = \frac{2}{9}+\frac{\sqrt{23}}{9} and r_{2} = \frac{2}{9}-\frac{\sqrt{23}}{9} roots of the quadratic function. By Algebra we know that:

y = (x-r_{1})\cdot (x-r_{2}) = x^{2}-(r_{1}+r_{2})\cdot x +r_{1}\cdot r_{2} (1)

Then, the quadratic polynomial is:

y = x^{2}-\frac{4}{9}\cdot x -\frac{19}{81}

y = 81\cdot x^{2}-36\cdot x -19

The quadratic polynomial with integer coefficients is y = 81\cdot x^{2}-36\cdot x -19.

5 0
3 years ago
I really don't understand help
Zielflug [23.3K]

Answer:

128 ft sq.

Step-by-step explanation:

The way you find the area of a square is by multiplying one side by another, and since it is a square, the sides are the same. This means that if we have a square with a side length of x, the way to find the area of that square is to multiply x by x, which can be written as x^2. Now, since we're doubling this, we can say that double Mary's garden is 2 * x^2. If we substitute 8 in for x, we have to multiply 8^2 by 2 or 8 by 8 by 2 to find our answer. 8 times 8 is 64 and 64 times 2 is 128.

5 0
2 years ago
Is (8,8) a solution to the equation y=x?​
Nookie1986 [14]

Answer:

Yes

Step-by-step explanation:

(8,8) is a solution is y=x.

If we substitute the point into the equation, the equation is true.

(8,8) is in (x,y) format

Substitute:

y=x

8=8

LS=RS (left side equal rights side)

7 0
3 years ago
Read 2 more answers
Traveled 208 miles in 4 hours, how far did holly travel in 1 hour ?
Alika [10]
Holly traveled 52 miles in 1 hour
3 0
3 years ago
Other questions:
  • 1. 5X - 3 = 2x + 12 <br> 2. 3 (X - 5) = 2 (X - 1)<br> 3. 5x - 6 + 2 (X + 2) = 3x + 7
    10·1 answer
  • A blueprint of a building gives a scale of 1 in. = 8 ft. If the blueprint shows the building sitting on a rectangle with dimensi
    11·1 answer
  • Identify the sequence graphed below and the average rate of change from n = 1 to n = 3.
    8·2 answers
  • What is the scale factor of XYZ to UVW
    5·2 answers
  • Which answer is an equation in point-slope form for the given point and slope? point (1,-7) slope -2/3
    14·2 answers
  • Whats the nth term of 13, 20, 27, 34...
    11·1 answer
  • What the solution to -2y = 4x + 8
    10·2 answers
  • BRAINLIEST FOR HELP PLZ
    11·2 answers
  • If you have a bit of honesty and sincerity, kindly avoid spamming just for points!
    5·1 answer
  • Simplify the expression 6x + 9 + 3x -x by combining like terms?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!