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alex41 [277]
3 years ago
8

What is the minimum point of the equation x^2+19=9x

Mathematics
1 answer:
azamat3 years ago
3 0

Answer:

The minimum point is (4.5, -1.25).

Step-by-step explanation:

x^2+19=9x

= x^2 - 9x + 19 = 0

Convert to Vertex form:

(x - 4.5)^2 - 4.5^2 + 19 = 0

= (x - 4.5)^2 - 1.25.

The minimum point is (4.5, -1.25).

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It cost Evan $17.70 to send 177 text messages. How many text messages did he send if he spent $19.10
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Molodets [167]
<h2>Perfect Squares</h2>

Perfect square formula/rules:

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Trinomials are often organized like ax^2+bx+c.

The <em>b</em> value in this case is <em>c</em>, and it will always equal the square of half of the <em>b</em> value.

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<h2>Solving the Question</h2>

We're given:

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In a trinomial, we're given the ax^2 and bx values. <em>a</em> in this case is 1 and <em>b</em> in this case is 4. To find the third value by dividing 4 by 2 and squaring the quotient:

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<h2>Answer</h2>

c^2-4c+4

(c-2)^2

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