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White raven [17]
3 years ago
11

Graph the equation: x = y^2 - 2

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0
Draw a cartesian plane, create a graph with the equation x = y^2 - 2
then substitute numbers into the equation so that it is true, to find points on the graph, e.g. substitute y with 1, you get 
x = 1^2 - 2
x = 1 - 2 = -1, so when y = 1, x = -1, this point is (-1, 1)

for the next substitute y with 2,
x = 2^2 - 2
x = 4 - 2 = 2, the point is (2, 2)
you might want to try negative values of y 
y = -1, x = (-1)^2 - 2
x = -1 the point is (-1,-1)

then plot the points on the graph
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(4x+1)(3x-7) yup it hurts
musickatia [10]

Answer:

12x^2-25x-7

Step-by-step explanation:

Multiply each term by its counterpart in the parenthesis.

4x*3x and 4x*-7

1*3x and 1*-7

This gives you 12x^2-4x*7+3x-7 when the like terms are combined.

Collect the like terms, which will give you 12x^2-25x-7

7 0
3 years ago
Read 2 more answers
Find the value of two numbers if their sum is 12 and their difference is 4​
Maslowich

Answer:8 and 4

Step-by-step explanation:

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(hope this helps)

4 0
3 years ago
Find the expected value of the winnings
Orlov [11]

The expected value of the winnings from the game is $4

<h3>How to determine the expected value?</h3>

The payout probability distribution is given as:

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The expected value is then calculated as:

E(x) = \sum x * P(x)

This gives

E(x) = 2 * 0.5 + 4 * 0.2 + 6 * 0.15 + 8 * 0.1 + 10 * 0.05

Evaluate the expression

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Read more about expected values at:

brainly.com/question/15858152

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7 0
1 year ago
Find the total surface area of this cuboid,<br> 5 cm<br> 4 cm<br> 6 cm
Tatiana [17]

Answer:

148

Step-by-step explanation:

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Sa=2(4*5+4*6+5*6)

148=2(4*5+4*6+5*6)

3 0
3 years ago
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On interchanging two digits of the number 2643, it decreased by 180. Which two digits of 2643 might have been interchanged?
iris [78.8K]
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Explanation:

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