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Tatiana [17]
3 years ago
5

Write the equation of the parabola that has the vertex at point (-2, -2) and passes through the point (-1, -1)

Mathematics
1 answer:
barxatty [35]3 years ago
5 0

Answer:

y = (x+2)²-2

Step-by-step explanation:

Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.

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Please I need help with these 2 questions!!
Elodia [21]

Answer:

Step-by-step explanation:

5. A straight line (view that attached graph)

6. y = x² + (-3) is equivalent to y = x² - 3

0:

y = x² - 3

y = 0² - 3

y = 0 - 3

y = -3

(0, -3)

1:

y = x² - 3

y = 1² - 3

y = 1

y = -2

(1, -2)

2:

y = x² - 3

y = 2² - 3

y = 4 - 3

y = 1

(2, 1)

3:

y = x² - 3

y = 3² - 3

y = 9 - 3

y = 6

(3, 6)

So the answers are: -3, -2, 1, 6

Hope this helps!

4 0
3 years ago
Which is the area of a rectangle TYOC with vertices T(-6,6), Y(2,10), O(4,6), and C(-4,2)?
Ne4ueva [31]
A diagram helps.

Diagonal TO divides the rectangle into two triangles of base 10 and height 4. The area of the two of them together (the area of the rectangle) is 10*4 = 40.

The area of rectangle TYOC is 40 square units.

8 0
3 years ago
8. Solve the system using elimination.<br> 3x - 4y = 9<br> - 3x + 2y = 9
olga nikolaevna [1]

Answer:

3x−4y=9 −3x+2y=9

Add these equations to eliminate x: −2y=18

Then solve−2y=18

for y: −2y=18 −2y −2 = 18 −2 (Divide both sides by -2)

y=−9

Now that we've found y let's plug it back in to solve for x.

Write down an original equation: 3x−4y=9

Substitute−9for y in 3x−4y=9: 3x−(4)(−9)=9

3x+36=9(Simplify both sides of the equation)

3x+36+−36=9+−36(Add -36 to both sides)

3x=−27 3x 3 = −27 3 (Divide both sides by 3) x=−9

Answer: x=−9 and y=−9

Hope This Helps!!!

4 0
3 years ago
Mrs. Levi's class raised $217.35 in one-time donations for the library's new book collection. The class also had 4 people pledge
nexus9112 [7]

Answer: $817.35

Step-by-step explanation:

150x4 = 600

600+217.35 = 817.35

7 0
3 years ago
Scientific notation for 56 million
alex41 [277]
56,000=5.6x10^4

Hope this helps :)
3 0
3 years ago
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