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Nastasia [14]
3 years ago
8

SIMPLE PROPABIBLITY QUESTION FOR 15 POINTS!!!! question below

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

Answer: 1/2

Step-by-step explanation:

it just is

alexira [117]3 years ago
5 0

Answer:

Step-by-step explanation:

1/2

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Find the equation of the line<br> passing through the points 1,-5)<br> and (9,11).<br> y = 2x + [?]
Naily [24]

Answer:

y = 2x - 7

Step-by-step explanation:

Looks like we already have the slope of this line:  It is 2.  Working with the point (1, -5), we have x = 1 and y = -5 and can from this info easily find the y-intercept, b:

y = mx + b becomes

y  = 2x + b, which in turn becomes

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b = -7,

and so the desired equation is y = 2x - 7

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Yo sup??

y=(x+4)(x-2)

to find the x intercept put y=0

0=(x+4)(x-2)

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y=(x+4)(x-2)

=x^2+2x-8

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To find the coordinates of the vertex we can apply the formula

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b=2

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D=b^2-4ac

=4-4*1*(-8)

=4+32=36

Vertex=(-2/2*1,-36/4*1)

=(-1,-9)

Hope this helps.

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