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quester [9]
3 years ago
11

Two numbers total 31 and have a difference of 9. Find the two numbers.

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0

Answer:

20, 11

Step-by-step explanation:

x=first Number

x-9=second number

above two added together=31 or

x+(x-9)=31

2x=40

x=20 first number

x-9=second number

20-9=11 second number

20 (first number) + 11 (second number)=31

31=31

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The point slope form:
y - y_1 = m(x - x_1)

We need to find the slope. To find the slope we can use the following formula:
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Use the points <span>(-5, 6) and (0, 1) and plug it into our slope formula and solve:
</span>\frac{1 - 6}{0 - (-5)}
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So our slope is -1 which means m = slope = -1 
Now that we have our slope lets create the point slope form

Our point slope form equation is y - y_1 = m(x - x_1) Remember 
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First insert the m = slope = -1 number where m is located
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Next, insert the -5 from (-5,6) where x_1 is located and the 6 from (-5,6) where y_1 is located.
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Now simplify 
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y - 6 = -1(x +5) <-------Answer





8 0
4 years ago
A quadratic function has a line of symmetry at x=-3.5 and zero at -9 what is the distance from the given zero to line of symmetr
g100num [7]

If a quadratic function has zero at x=-9, then point (-9,0) lies on the graph of quadratic function.

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