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alukav5142 [94]
3 years ago
7

(-2,-4) ;m =3 in point slope form please

Mathematics
1 answer:
zalisa [80]3 years ago
8 0

\huge\boxed{y+4=3(x+2)}

Point-slope form is y-y_1=m(x-x_1), where m is the slope and (x_1,y_1) is a point on the line.

Substitute in the values. y-(-4)=3(x-(-2))

Simplify the negative subtraction to addition. \boxed{y+4=3(x+2)}

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The area of a square in square feet is
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Part 1) The expression for the perimeter is P=4(25z-3) or  P=100z-12

Part 2) The perimeter when  z = 15 ft. is P=1,488\ ft

Step-by-step explanation:

Part 1)

we have

625z^{2}-150z+9

Find the roots of the quadratic equation

Equate the equation to zero

625z^{2}-150z+9=0

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Group terms that contain the same variable, and move the constant to the opposite side of the equation

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Complete the square. Remember to balance the equation by adding the same constants to each side

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P=100z-12

substitute the value of z

P=100(15)-12=1,488\ ft

4 0
3 years ago
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