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Yakvenalex [24]
2 years ago
11

Evaluate the expression when y=4 y^2-5y+6

Mathematics
2 answers:
Dovator [93]2 years ago
7 0

Answer:

6

Step-by-step explanation:

4² x 2 - 5 x 4 + 6

16 x 2 - 20 + 6

32 - 20 + 6

12 - 6

6

Iteru [2.4K]2 years ago
6 0

Answer:

2

Step-by-step explanation:

y = 4

(4)^2 - 5(4) + 6

16 - 20 + 6

= 2

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Answer:

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                                y² = -18 x +27

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Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given focus : (-3 ,0) ,directrix  : x=6

Let P(x₁ , y₁) be the point on parabola

PM perpendicular to the the directrix L

                          SP² = PM²

                (x₁ +3)²+(y₁-0)²  = (\frac{x_{1}-6 }{\sqrt{1} } )^{2}

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                           y₁² = -18 x₁ +27

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