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abruzzese [7]
3 years ago
8

How would you graph the expression of 2x^2-12x+19 I'll put 20 points!! Help.

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0
.Vertex: <span><span>(<span>3,1</span>)</span><span>3,1</span></span>Focus: <span>(<span>3,<span>9/8</span></span>)</span>Axis of Symmetry: <span>x=3</span>Directrix: <span>y=<span>7/8
</span></span>

Select a few x values, and plug them into the equation to find the corresponding y values. The x
 values should be selected around the vertex.

Graph<span> the </span>parabola<span> using its properties and the selected </span>points<span>.
</span>

Vertex<span>: </span><span>(<span>3,1</span><span>)
</span></span>
Focus<span>: </span><span>(<span>3,<span>9/8</span></span><span>)
</span></span>
Axis of Symmetry: <span><span>x</span><span>=3</span></span>Directrix: <span>y=<span><span>7/8

x= 1,2,3,4,5

y= 9,3,1,3,9 </span></span></span>
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What is the value of k that makes each equation true. For example, 5(ky-6)=15y-30
motikmotik

Answer:

k = 3

Step-by-step explanation:

5(ky-6)=15y-30

Factor out a 5 from the right side

5(ky-6)=5(3y-6)

Divide each side by 5

ky -6 = 3y -6

Add 6 to each side

ky = 3y

divide by y

k = 3

4 0
3 years ago
I need help with this math
Zinaida [17]

Answer:

D

Step-by-step explanation:

∠1 + ∠2  =  180   {Supplementary angles}

6x + 15 + 3x + 3 = 180

6x + 3x + 15 + 3 = 180      

Combine like terms

9x + 18 = 180

Subtract 18 from both sides

9x = 180 - 18

9x = 162

x = 162/9

x = 18

∠2 = 3x +3

     = 3*18 + 3

     = 54 + 3

∠2 = 57°

8 0
3 years ago
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6 over 7 subtracted by 1 over 7
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Answer:

5/7

Step-by-step explanation:

6/7-1/7=5/7

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4 years ago
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What are the square roots of 81? I​
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The square root of 81 is 9
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The general form of the equation of a circle is ax2 by2 cx dy e = 0, where a = b 0. if the circle has a radius of 3 units and th
aev [14]

The set of values which might correspond to the circle are A = 1, B = 1, C = 0, D = -8 and E = 7.

<h3>The equation of a circle.</h3>

Mathematically, the general form of the equation of a circle is given by;

(x - h)² + (y - k)² = r²

<u>Where:</u>

  • h and k represents the coordinates at the center.
  • r is the radius of a circle.

Based on the information provided that the center of the circle lies on the y-axis, we have:

(h, k) = (0, 4)

Radius, r = 3 units.

Substituting the given parameters into the formula, we have;

(x - 0)² + (y - 4)² = 3²

x ² + y² - 8y + 16 = 9

x ² + y² - 8y + 7 = 0.

Therefore, the set of values which might correspond to the circle are A = 1, B = 1, C = 0, D = -8 and E = 7.

Read more on circle here: brainly.com/question/1615837

#SPJ1

<u>Complete Question:</u>

The general form of the equation of a circle is Ax² + By² + Cx + Dy + E = 0, where A = B. If the circle has a radius of 3 units and the center at (0, 4), which set of values of A, B, C, D, and E correspond to the circle?

4 0
2 years ago
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