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Firdavs [7]
3 years ago
9

Can somebody help me with this question

Mathematics
1 answer:
goblinko [34]3 years ago
8 0

A function is a relationship where each x-value is paired with exactly one y-value.

When looking at a graph, you want to ask yourself, "Can I find any two points on this graph that have the same x-value?"

I can see with x=8 that there would be two points on that graph with an x-value of 8, making this not a function.

People call this test "the vertical line test" because any vertical line really represents a single x-value. If any vertical line hits the graph more than once, the graph cannot be a function, because that value of x has more than one y-value.

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If 3x−y=12, what is the value of <br> 8x<br> 2y<br> ?
anygoal [31]

If 3x-y=12, what is the value of 8x/2y?

Answer:

\frac{8x}{2y} =\frac{4x}{3x-12}

Step-by-step explanation:

3x-y=12

-y=12-3x

y=3x-12-------------------------(equation 1)

Now,

\frac{8x}{2y} =\frac{8x}{2(3x-12)}---------(from equation 1)

=\frac{8x}{6x-24}

=\frac{8x}{2(3x-12)}

=\frac{4x}{3x-12}

Therefore, the value of \frac{8x}{2y} =\frac{4x}{3x-12}

3 0
3 years ago
Hey guys I don’t understand this one so can y’all please help me? :))))
aksik [14]

Answer:

11) c = 16.1

12) c = 11.4

Step-by-step explanation:

11)

a² + b² = c²

8² + 14² = c²

64 + 196 = c²

c² = 260

\sqrt{c^2} =\sqrt{260}

c = 16.1

12)

a² + b² = c²

7² + 9² = c²

49 + 81 = c²

c² = 130

\sqrt{c^2} =\sqrt{130}

c = 11.4

6 0
3 years ago
Read 2 more answers
write a liner function domain of 123 + 4 + 5 which cannot be used to represent the arithmetic sequence sequence 12-7 to -3 + -8
oksian1 [2.3K]

Answer:

srry but i havent gone over this

Step-by-step explanation:

6 0
4 years ago
Which proportion can be used to show that the slope of JL is equal to the slope of MP
Ilya [14]

Answer:

See below and attached

Step-by-step explanation:

<u>As per the graph we have:</u>

  • Coordinates of JL are J(-7, 4), L(-4, 0)
  • Coordinates of MP are M(-10, 8), P(-1, -4)

<u>Slope formula is:</u>

  • m = (y₂ - y₁)/(x₂ - x₁)

<u>Slope of JL:</u>

  • (0 - 4)/(-4-(-7)) = - 4 / 3

<u>Slope of MP:</u>

  • (-4 -8)/(-1- (-10)) = -12 / 9 = - 4/3

5 0
3 years ago
Simplify the expression 5+6i/4+6i<br> A) 56-6i/-20<br> B) -16-6i/-20<br> C)56-6i/52<br> D) -16-6i/52
IRISSAK [1]

Answer:

The\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

Step-by-step explanation:

As the expression given in the question as follows.

= \frac{5 + 6i}{4 + 6i}

Now rationalize the expression.

= \frac{5 + 6i\times 4 - 6i}{4 + 6i\times 4 - 6i}

Using the formula

a² - b² = (a - b) (a + b)

Using in the above

= \frac{5 + 6i\times 4 - 6i}{(4)^{2} - (6i)^{2}}

= \frac{5\times 4-5\times 6i+6i\times 4-36\ i^{2}}{16 - 36(i)^{2}}

As i² = -1

= \frac{20-30i+24i+36}{16 + 36}

= \frac{56-6i}{52}

Therefore\ the\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.

Option (C) is correct .

8 0
3 years ago
Read 2 more answers
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