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Alexeev081 [22]
3 years ago
13

What is the equation of a line with a slope of 7 and a point (1, 8) on the line?

Mathematics
1 answer:
Helen [10]3 years ago
7 0

Answer:

y=7x+1

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

y=mx+b

where

m is the slope

b is the y-intercept

In this problem we have

m=7

point(1,8)

substitute and solve for b

8=7(1)+b

8=7+b

b=8-7=1

The equation of the line is equal to

y=7x+1

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Answer:

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Step-by-step explanation:

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option 1:

Since the volume is given as 56 and we know the volume is area of base * height, to keep the volume at constant [56], if height increases, area of base would need to decrease, and vice versa. So Inversely proportional.

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The time spend in plowing a field with a tractor with increase when we area using more fuel.So more fuel used means more time spent. So these are directly proportional, Not inverse.

option 3:

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2 years ago
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Answer:

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Step-by-step explanation:

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Solution:

Note: The effect of each percentage on original price is as follows, where y is the original price of the DVD:

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                        Sales Tax of 5% = Price increased by 0.05*y

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                        Amount left after discount = y - 0.15*y = 0.85*y

                        Amount after tax = y + 0.05*y = 1.05*y

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                        Factor of discount = 0.85

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Solution:

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                        Perimeter = (0.5*x + 9) + (3x) + ( -3.4*x - 25 )

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Answer:           Perimeter = 0.1*x - 16

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