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wel
3 years ago
8

What is an equation in point slope form of the line that passes through -3, -1 and has a slope of 2

Mathematics
1 answer:
Masja [62]3 years ago
5 0

Answer:

y+1=2(x+3)

Step-by-step explanation:

we know that

The equation of a line in point slope form is equal to

y-y1=m(x-x1)

we have

m=2\\(x1,y1)=(-3,-1)

substitute

y+1=2(x+3)

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A man invest 5,200,part at 4% and the balance at 3%. If his total income for the two investments is $194,how much money did he i
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Let the amount invested at 4% be = x

Let the amount invested at 3% be = y

Given is:

x+y=5200 or x=5200-y  .... (1)

As, total income for the two investments is $194, so equation is:

0.04x+0.03y=194   ....(2)

Putting value of x from (1) in (2)

0.04(5200-y)+0.03y=194

208-0.04y+0.03y=194

0.01y=14

y=1400

And x=5200-y

x=5200-1400=3800

Hence, money invested at 4% is $3800 and money invested at 3% is $1400

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2 years ago
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Answer:

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