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never [62]
3 years ago
11

Solve each system using substitution or elimination. Show all required work. X^2+y^2=40 -x+y=-8

Mathematics
1 answer:
mr_godi [17]3 years ago
4 0

Answer:

steps and answers in the pic..hope u can understand the calculations...

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Answer:

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Step-by-step explanation:

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Equation of a line:
y=mx+c

m = gradient: The difference between two y points and two x points.
m= \frac{\Delta y}{\Delta x}

c = y-intercept: Where the line crosses the y-axis (x=0)

You have:
y=\textunderscore\textunderscore \ x + \textunderscore
so you are missing the m and the c.

To calculate m find two y coordinates -you have (12, <u>7</u>) and (0, <u>1</u>)- and subtract them. Then divide this by the subtracted values of the x coordinates -you have (<u>12</u>, 7) and (<u>0</u>, 1)- This gives:

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m= \frac{6}{12}
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c=1

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Fluency two step equations
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Answer:

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