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HACTEHA [7]
3 years ago
12

What is the equation of the graph?

Mathematics
1 answer:
Savatey [412]3 years ago
4 0
We have points (-1,3),(0,1),(1,3) so we can set up a system of equations for the general form ax^2+bx+c...

a+b+c=3, 0a+0b+c=1, a-b+c=3  getting differences

a+b=2, -a+b=-2  getting the sum

2b=0, b=0, making a+b=2 become:

a+0=2, a=2, making a+b+c=3 become:

2+0+c=3, c=1 so

y=2x^2+1
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3 years ago
Which of the following equations is of a parabola with a vertex at (3, 0)?
bixtya [17]

Answer:

D. y = (x - 3)²

Step-by-step explanation:

The parabola formula in vertex form is:

y = a(x - h)² + k

where the vertex is located at (h, k). Replacing with vertex (3, 0) we get:

y = a(x - 3)² + 0

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y = (x - 3)²

7 0
2 years ago
1/17b = 90????<br> Please start it as multiplying both sides with the denominator
Ilya [14]

Answer:

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3 0
3 years ago
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A coin is tossed 4 times. Which of the following represents the probability of the coin landing on heads all 4 times?
galben [10]

Answer:

C.1/16

Step-by-step explanation:

When a coin is tossed 4 times, the number of outcomes are:

2^4 = 16

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So, the probability will be:

One out of the 16 outcomes

Hence, the probability of a coin landing on heads all 4 times is:

C.1/16

5 0
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A dozen roses cost $60.00. What is the cost of two roses?
Andreas93 [3]
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