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Nat2105 [25]
2 years ago
15

Find the domain, range and if it’s a function.

Mathematics
1 answer:
Marta_Voda [28]2 years ago
6 0
Domain: {-1}
Range: {0, 4, 9, 15}
Function? No

Explanation:
The domain is the x value in the given points. The only x value is -1.
The range is the y value in the given points.
You can tell if this is a function if it has repeating x values or not. Since the x value of -1 repeats, it is not a function.

Hope this helps, and please mark brainliest :)
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What is the value of the discrimamt for the quadratic equation 0=x + 2 +x2
Leno4ka [110]
-7 is the value of discriminant for this equation.
3 0
3 years ago
The wholesale price for a pair of jeans is $15.25. A store marks up the
Paladinen [302]
15.25/.83 = 12.6
12.6/.6 = $30.6
hope this helps
7 0
2 years ago
What is the greatest whole number that is less than ( 5\2)^3 divided by (3\4)^2
12345 [234]
First work out (5/2)³ by cubing both the numerator and denominator to give: 125/8

then work out (3/4)² by squaring both the numerator and denominator to give: 9/16 

then divide 125/8 by 9/16
using the stay-change-flip method of division:
the first term stays the same, the divide becomes multiply and the second fraction is flipped upside down.
so:
125/8 x 16/9 =2000/72
then just divide 2000 by 72 to give: 27.78 to 2 d.p
therefore the greatest whole number than 27.78 is 27.
5 0
3 years ago
Which number is an irrational number
12345 [234]

Answer:

A choice.

Step-by-step explanation:

Irrational number is a number that cannot be written in a fraction form. All square roots are classified as an Irrational number unless can be evaluated to Rational number.

From A choice, you cannot evaluate the square root of 7 into any rational number. Therefore, it is an Irrational number.

B choice, even though there is a square root, but you can still evaluate from square root of 4 to 2.

For C and D, both are integers. Integers are classified to be Rational Number. Therefore, C and D both are rational.

7 0
2 years ago
Which equation represents the graph?
klio [65]
The second option.

That is because
y -3 = - \frac{1}{2}(x + 1) \\ (y -3)+3 = (- \frac{1}{2} x - \frac{1}{2}) + 3 \\ y = - \frac{1}{2}x + 2 \frac{1}{2}
6 0
3 years ago
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