3 years ago

What is vertex form in a quadratic function?

1 answer:

7 0

Answer:

The vertex form of a quadratic function is given by. f (x) = a(x - h)2 + k, where (h, k) is the vertex of the parabola. FYI: Different textbooks have different interpretations of the reference "standard form" of a quadratic function.

Step-by-step explanation:

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Use this h=graph to graph x > 7

HACTEHA [7]

Btw I’m not 100% confident in this answer.

There is a open circle over 7 in the x-axis b cause it is not greater than and less than 7

5 0

3 years ago

Read 2 more answers

What’s the answer? I really need help I been trying for the longest.

nikitadnepr [17]

D. 8

you cross multiply. so 14x4=56
then divide 56 by 7 to get 8

5 0

3 years ago

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If f(x) = x^2 - 2x and g(x) = 6x + 4, for what value of x does (f + g)(x) = 0?

larisa86 [58]

Answer:

x = -2

Step-by-step explanation:

$f(x) =x^2 -2x\:\: and \:\: g(x) = 6x + 4\\(f+g)(x) = f(x) + g(x) \\(f+g)(x) = x^2 -2x+ 6x + 4\\(f+g)(x) = x^2+4x + 4\\(f+g)(x) = (x+2)^2\\ 0 = (x+2)^2...[\because (f+g)(x) =0]\\0 = x+2\\\therefore x = -2$

6 0

3 years ago

Read 2 more answers

Answer for number 3

julia-pushkina [17]

36x^2-49
this closely matches the binomial formula of (a+b)*(a-b)=a^2-b^2
so we know:
a^2=36x^2
a=6x

b^2=49
b=7

so (a+b)*(a-b)=(6x+7)*(6x-7)=36x^2-49

4 0

3 years ago

Select the simplification that accurately explains the following statement.

Mariana [72]

<u>Answer</u>

<u>Explanation</u>

9⁽¹/²⁾² = (9⁽¹/²⁾)²

= 9¹/² × 9¹/² (Since the base are the same, we can add the power.)

= 9⁽¹/² ⁺¹/²⁾

= 9 ¹

= 9

The correct simplification is D.

8 0

4 years ago