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noname [10]
3 years ago
7

Help me with #22 please.

Mathematics
2 answers:
gogolik [260]3 years ago
7 0
Write out the Eq. for slope:
m= \frac{( y_{2} - y_{1} )}{( x_{2} - x_{1})}

(-4,8) = (x1,y1)
(r, 12) = (x2,y2)
m=\frac{4}{3}

Use this information to plug into the slope equation:
m= \frac{( y_{2} - y_{1} )}{( x_{2} - x_{1})}
\frac{4}{3} = \frac{( 12 - 8 )}{( r - (-4))}
\frac{4}{3} = \frac{( 4 )}{( r - (-4))}



Since we want the bottom of the fraction =3 set r-(-4)=3 and solve
r-(-4)=3
r+4-4=3-4
r= -1





professor190 [17]3 years ago
5 0
4/3 = (12 - 8) / (r+4)
4/3r + 16/3 = 4
4r + 16 = 12
4r = -4
r = -1

answer
G. -1
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3 years ago
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This is the 'Difference of Squares' formula we can use to factor the expression.

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All you do here to factor, is take the square root of each term.

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Our answer is final </span><span>(x + 2)(x - 2), which can also be written as (x - 2)(x + 2), it doesn't make a difference which order you put it in.

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Step-by-step explanation:

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Please help! Thank you!
Bezzdna [24]

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Step-by-step explanation:

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