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Goryan [66]
3 years ago
8

Which graph represents a function

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0

Answer:

The top left.

Step-by-step explanation:

You can use the vertical line test in order to prove if something is a function. If you place a vertical line on the graph and it intersects more than one point on the x-axis, it is not a function. Functions do not have overlapping x variables.

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Let f(x) = x + 8 and g(x) = x2 − 6x − 7. Find f(g(2)). (1 point)<br><br><br> −7<br> −3<br> 10<br> 33
qwelly [4]
Since the expressions for f(x) and g(x) are already given, f(g(2)) means to substitute the value of 2 to the expression of g(x), then further substituting the obtained value of g(2) into the expression of f(x). This is shown below:

f(x) = x + 8
g(x) = x^2 - 6x - 7

f(g(x) = x^2 - 6x - 7 + 8 
f(g(2)) = 2^2 - 6(2) + 1
f(g(2)) = 4 - 12 + 1
f(g(2)) = -7

Therefore, the correct answer is -7.
6 0
2 years ago
5x 2 +5x x 2 −1 ​ What is an equivalent expression in lowest terms?
arsen [322]

Answer:

Step-by-step explanation:

Explanation:

Start by writing out your starting expression

x

2

−

5

x

2

+

5

x

−

14

−

x

+

3

x

+

7

Next, factor the denominator of the first fraction

x

2

+

5

x

−

14

x

2

+

7

x

−

2

x

−

14

x

(

x

−

2

)

+

7

(

x

−

2

)

(

x

−

2

)

(

x

+

7

)

Your expression is thus equivalent to

x

2

−

5

(

x

−

2

)

⋅

(

x

+

7

)

−

x

+

3

x

+

7

Since you have to subtract two fractions, you need to find the commonon denominator first. To do that, multiply the second fraction by  

x

−

2

x

−

2

x

2

−

5

(

x

−

2

)

⋅

(

x

+

7

)

−

(

x

+

3

)

⋅

(

x

−

2

)

(

x

−

2

)

⋅

(

x

+

7

)

This will get you

x

2

−

5

−

(

x

+

3

)

(

x

−

2

)

(

x

−

2

)

(

x

+

7

)

x

2

−

5

−

x

2

−

x

+

6

(

x

−

2

)

(

x

+

7

)

=

1

−

x

(

x

−

2

)

(

x

+

7

)

5 0
2 years ago
Aubrey wants to buy a pair of jeans of $29.99 and a shirt for $15.75. How much money does Aubrey need to buy both items?
aniked [119]

Answer:

$55-$60

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please tell me !!!!!!
vlada-n [284]

Answer:

H

Step-by-step explanation:

Its H because a square has 4 sides and 58 divided by 4 is 14.5

8 0
3 years ago
What does –5(–2) equal
mel-nik [20]

Answer:

10

Step-by-step explanation:

8 0
3 years ago
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