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Alex
2 years ago
9

Giving 25 points for whoever answers it with a complete explanation .. ASAP

Mathematics
2 answers:
MAXImum [283]2 years ago
8 0
No, it is not a function.
Since all the lines have been drawn in the grid line do not have any connection between them even a point in common.
I hope this has been useful for you.
FrozenT [24]2 years ago
7 0
For a relation to be a function, each x-coordinate can appear only once.
If you have more than one ordered pair with the same x-coordinate, the relation is not a function.
One way to determine whether or not it is a function is to use the vertical line test.
Imagine a vertical line moving from left to right. If the vertical line intersects at most one point of the graph in any position it is, the graph is a function.

As the vertical line goes from x = -4 to just before x = -1, it only intersects on point at a time. At x = -1, y = 1, the solid dot, so at x = -1, the vertical line also only intersects one point. Then the vertical line goes from x = -1 to just left of x = 1. Again, it passes the vertical line. At x = 1, y is not equal to 1 or to 2 since those points have open dots. At x = 1, y is only -2. The vertical line only intersects one point at x = 1. From x = 1 to past x = 4, the relation also passes the vertical line test.

The graph of the function passes the vertical line test everywhere, so the relation in the graph is a function.
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kramer
Multiply
(x+a)(x+b) = x^2 + bx + ax + ab
looking at; x^2 + 10x + 24
can you see that

ab = 24
bx + ax = 10x
then
a + b = 10

use substitution: a = 10 - b

(10-b)b = 24
10b - b^2 = 24
-b^2 + 10b -24 = 0
now find the values for b using the quadratic equation. I'm on my phone so you'll have to plug the numbers in. let me know if you have any questions.
8 0
3 years ago
What two numbers add to 4 and, when multiplied together, equal −12?
lara31 [8.8K]
<span>Let x = first number
Let y = second number
x + y = 4
x * y = (-12)
Solve the first equation for x.
x = 4 - y
Now substitute this value of x into the second equation.
(4 - y) * y = (-12)
4y - y² = (-12)
y² - 4y - 12 = 0
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Now set both polynomials equal to zero
y + 2 = 0
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y = 6
If you substituted these two values for y into either equation and solve for x, you would get the combination of 6 and -2

Hope I was able to help you! :)
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4 0
3 years ago
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liberstina [14]
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so the multiplication will be:

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so the answer is 48.
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Step-by-step explanation:

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Step-by-step explanation:

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