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Sloan [31]
2 years ago
12

Find zeros from vertex form y=4(x-2)^2

Mathematics
1 answer:
uranmaximum [27]2 years ago
7 0
<h2>Explanation:</h2><h2></h2>

The vertex form of the equation of a parabola is given by the form:

y=a(x-h)^2+k \\ \\ \\ Where: \\ \\ a \ \text{is the leading coefficient and (h,k) the vertex of the parabola:}

The zeroes are the x-values that touches the x-axis, that is, those x-values at which y=0. Form the equation it's easy to know that at x=2 the output y=0 because:

y=4(x-2)^2 \\ \\ If \ x=2: \\ \\ y=4(2-2)^2 \\ \\ y=4(0)^2 \\ \\ y=0

So the only zero occurs at x=2

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Write an equation of a line going through (5,7) and (4 , -4)
Ostrovityanka [42]

Answer:

The equation of this line would be y = 11x - 48

Step-by-step explanation:

To get this equation, we first have to find the slope. We do that with the slope eqaution.

m(slope) = (y2 - y1)/(x2 - x1)

m = (-4 - 7)/(4 - 5)

m = -11/-1

m = 11

Now we can use this slope and either point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 7 = 11(x - 5)

y - 7 = 11x - 55

y = 11x - 48

6 0
3 years ago
Find f(3) if f(x) = -4x^2+5x
maksim [4K]
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Step-by-step explanation:

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What is the absolute value of 0
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The absolute value of zero is zero
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Evaluate:-|137|+|13|​
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Answer:

The answer is 150

Step-by-step explanation:

I think what you mean with the numbers between the "I's" is <em>absolute value</em>. Any number is just that number, so the <em>absolute value </em>of -6, is 6. The absolute value of 24 is 24. That means it's simply 137+13, which is <u>150</u>.

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