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KengaRu [80]
2 years ago
12

Help please!! Will mark brainstest!!

Mathematics
1 answer:
cluponka [151]2 years ago
6 0
The correct answer is letter B
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Explain the procedure (but don't create the graph) for graphing the quadratic function in factored form f(x) = (x - 2)(x + 4) us
hichkok12 [17]

Answer:  You will need to find the x-intercepts and the vertex

Step-by-step explanation: Use the information in the factors and some formulae.

The x- intercepts are the points where the parabola crosses the x-axis. The x-axis is where y = 0

Set each factor equal to 0 and solve:

x-2=0, so x = +2 and x +4 = 0, so x = -4    (you would plot these if creating the graph)

To find the vertex you need the Vertex Formula: x = -b/2a

b is the coefficient of the x term in the middle of the quadratic equation; you can just do the O and I parts of FOIL to get b:  -2x + 4x = 2x  You know a = 1 because x²  will have the implied (missing)(1).

Put the numbers in the Formula: x = -b/2a   x = -(2)/2(1)  -2/2 = -1  

-1 is the "x-value" of the vertex.  

The y value is the 'c' in the quadratic formula. You get that from the  L part of FOIL   -2 × 4 = -8 .

So, your coordinates for the vertex:  ( -1, -8 )

If you were creating a graph, you would plot that point, then draw the parabola starting there and through the x-intercepts.  

5 0
3 years ago
Find the missing side<br> 1) 6<br> 2) 6.41<br> 3)6.40
pantera1 [17]
Answer:

3. 6.40

Explanation:
3 0
2 years ago
How do you write 6/4 as a percentage?
NeX [460]
Hello,

How do you write 6/4 as a percentage?:

\frac{6}{4}  = 1.5 x 100 = 150%

Thanks,

- Detector
6 0
3 years ago
Read 2 more answers
My original lenguaje is Spanish so I'm really bad in English.
NNADVOKAT [17]

Step-by-step explanation:

lo siento much solo si fuera Buena con matimaticas.

6 0
2 years ago
Three points are collinear.
il63 [147K]
If they are in the same line yes. If they aren't then its considered non-collinear.
3 0
3 years ago
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