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Natasha2012 [34]
3 years ago
13

Slope intercept formula y=my+b The line through (4,2) and (8,5)

Mathematics
2 answers:
Helga [31]3 years ago
5 0
Sure.
First, we can find the slope using y2-y1/x2-x1. That gives us:
5-2/8-4, or 3/4.
SInce the slope is m, we already have m. We can plug it into an equation and use the x and y from any of the two coordinates you've given us to find b, or the y intercept. Let's go it.
We'll use (4,2)
2 = 3/4(4) + b
That gives us:
2 = 3 + b
Subtract 3 from both sides to get b = -1.
Therefore, our equation is:
y = 3/4x - 1
Hope this helped!

zaharov [31]3 years ago
3 0
Slope = (5-2)/(8-4) = 3/4

equation : y - 2 = 3/4(x - 4)

y = (3/4)x  - 1
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Complete the ordered pair so that it is a solution of 1/2x + y - 1 = 0.<br><br> (-6,___)
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3 years ago
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Nina [5.8K]

Answer:

Option F

Step-by-step explanation:

F). x + y = 3 -------(1)

    x - 3y = -2 --------(2)

    Equation (1) minus equation (2)

    (x + y) - (x - 3y) = 3 - (-2)

    4y = 5

    y = 1.25

    Hence, y is positive.

G). x + y = 3 --------(1)

    x + y = -2 --------(2)

    Both the equations represent parallel lines.

    There are no solutions of the given equations.

H). x - 3y = -2 -------(1)

     x + y = -2 -------(2)

    Equation (2) minus equation (1)

    (x + y) - (x - 3y) = -2 - (-2)

     4y = 0

     y = 0

    Since, 0 is neither positive nor negative, y will be neither positive nor negative.

J). x + y = 3 -------(1)

    x - y = 3 --------(2)

    Equation (1) - Equation (2)

    (x + y) - (x - y) = 3 - 3

    2y = 0

    Hence, y is neither negative nor positive.  

    Therefore, Option F is the answer.

7 0
3 years ago
WHAT IS (2x2A5)x35= please answer
Anna71 [15]
The answer is 140x^5
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4 years ago
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