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3 years ago

-4 1/2x - 3/7= 1/4find x

1 answer:

7 0

- 4(1/2)x - (3/7) = (1/4)
- 4(1/2)x = (1/4) + (3/7)
- (9/2)x = (7+12)/28
-(9/2)x = 19/28
x = (19/28) * 2 / 9
x = (19/14) / 9
x = 19 / (14*9)
x = 19 / 126

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Answer:

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Step-by-step explanation:

If we have a parabola whose equation is:

$y=ax^{2} +bx+c$

The line of symmetry is calculated as:

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Now, we have the equation $y=ax^{2}-4x+3$ and the line of symmetry is $x=-2$

Where:

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So, we can replace $b$ by -4 and $x$ by -2 and solve for $a$ using the following equation as:

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3 years ago

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Answer:

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2 years ago

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Answer:

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