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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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3 years ago
In the circle below, chord AB passes through the center of circle 0. If the radius OC is perpendicular to chord AB and has lengt
Airida [17]

Answer:

Option (C)

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AO = OB = OC

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By applying Pythagoras theorem in right ΔBOC,

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BC = \sqrt{OC^{2}+OB^{2}}

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     = 7\sqrt{2}

     ≈ 9.9 units

Therefore, Option (C) will be the answer.  

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3 years ago
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Aleonysh [2.5K]
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Use the discriminate to determine the number and the nature of the solutions of the giving equation.
PolarNik [594]

Answer:

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If b^2 -4ac = 0 we have one real root

If b^2 -4ac < 0 we have two complex root

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3 years ago
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, 3+2 = 5
7 0
3 years ago
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