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3 years ago

8 + 5x - 2 = -14what is the value of x?

Mathematics

1 answer:

rjkz [21]3 years ago

3 0

Answer:

Step-by-step explanation:

6 + 5x - 2 = -14

5x + (6 - 2) = -14

5x + 4 = -14 subtract 4 from both sides

5x = -18 divide both sides by 5

x = -3.6

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3 years ago

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Step-by-step explanation:

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3 years ago

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4 years ago

Determine if the graph is a function then state the domain and range.

nignag [31]

<h3>Explanation</h3>

A function is a set of relation that doesn't have repetitive domain. If we want to know if a graph is function or not, we have to do the line test.

Line Test

Draw a vertical line. Make sure that a line passes through a graph.
See if a line intercepts a graph more than one point or just only one.

Result

If a line intercepts a graph more than one point, it is not a function.

However, if a line only intercepts a graph just one point, it is indeed a function.

The given graph from the question is a function because it passes line test.

Domain and Range

Domain is the set of all x-values, meaning we only focus on x-axis or x-value only.

Range is the set of all y-values. We only focus on y-value or y-axis for Range.

Determine Domain from Graph

We can simply say that the domain is from starting domain or x-coordinate point to end x-coordinate point. For example, if a graph starts at x = -4 and ends at x = 2, we can say that - 4<=x=2.

Determine Range from Graph

Similar to Domain except Range starts from the minimum value or point to the maximum point or value. For example if a graph starts at min point = 6 and max point = 9. We can say that 6<=y<=9.

From the graph, the domain starts from negative infinity to positive infinity. Meaning that x can be any numbers. Hence, the domain is set of all real numbers. For range, the minimum value is 0 and max value is positive infinity. Therefore we write y>=0.

<h3>Answer</h3>

 $\begin{cases} x \in \mathbb{R} \\ y \geqslant 0 \end{cases}$ 

Domain is set of all real numbers.

Range is greater or equal to 0.

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3 years ago

14) How many solutions does the following equation have? 2x + x + 4 = 3x + 4

omeli [17]

Answer:

Infinitely many solutions

Step-by-step explanation:

2x + x + 4 = 3x + 4
3x + 4 = 3x + 4

Both sides of the equation are exactly same.

It means regardless the value of x the equation is true.

The equation has infinitely many solutions.

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3 years ago

Read 2 more answers

8 + 5x - 2 = -14what is the value of x?​

8 + 5x - 2 = -14what is the value of x?