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yKpoI14uk [10]
3 years ago
14

What is the slope of a line that is perpendicular to y=1/2x+9 that passes through (-7,-4)

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0
Hi there!

To find the perpendicular slope you need to flip the fraction and change the sign. So 1/2=2/1 and tge original slope was positive, so the slope is -2. Now you sub in the point (-7,-4) in for x and y in the formula y=mx+b and solve for b (sub in 2 for m as well)
Y=mx+b
-4=-2*-7+b
-4=14+b
-4-14=b
B=-18
The equation is y=-2x-18

Hope this helps!
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torisob [31]
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3 years ago
HELP ME Use the figure shown. Let point D be at ( - 4,1). Use the sides of ABDA to find the slope of the line. Ay 4 3 C(-2,2) 2
ipn [44]

Answer:

slope = -1/2

Step-by-step explanation:

we use point B and point A to find the slope

A(-2,1)    B(-4,2)

-2 = x1

1 = y1

-4 = x2

2 = y2

the formula for slope is: y/x = y1 - y2  /  x1 - x2 = 1 -2 / -2-(-4) = -1/2

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8 0
2 years ago
If x / 3 equals 6 then x equals
sleet_krkn [62]

Answer: X = 18

Step-by-step explanation:

Crossmultiply

8 0
4 years ago
Please answer this correctly without making mistakes
Monica [59]

Answer:

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Step-by-step explanation:

In similar shapes, corresponding sides are always in the same ratio.

For example,

if the sides in triangle 1 were a and b, and triangle 2 had side lengths c and d, c and a had the same ratios, and b and d had the same ratios

and triangle 1 was similar to triangle 2, the ratio between the sides of the triangles would be

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What that means is that in this situation, 8/5=g/35.

8/5=g/35

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4 0
3 years ago
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