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3 years ago

Solve for the value of x 1+6.9x=-1.8+5.9x

Mathematics

1 answer:

Vladimir79 [104]3 years ago

7 0

Answer:

x=-2.8

Step-by-step explanation:

$1+6.9x=-1.8+5.9x\\\\1-1+6.9x=-1-1.8+5.9x\\\\0+6.9x=-2.8+5.9x\\\\6.9x=-2.8+5.9x\\\\6.9x-5.9x=-2.8+5.9x-5.9x\\\\1x=-2.8+0\\\\x=-2.8$

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4 years ago

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Question 5(Multiple Choice Worth 1 points)

Snezhnost [94]

Given:

The graph passes through the points (0,-20) and (4,10).

To find:

The equation of line that most closely represents the line depicted in the graph.

Solution:

If a line passing through two points, then the equation of line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

The given line passes through the points (0,-20) and (4,10). So, the equation of line is

$y-(-20)=\dfrac{10-(-20)}{4-0}(x-0)$

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Subtracting 20 from both sides, we get

$y=\dfrac{15}{2}x-20$

The function form is

$f(x)=\dfrac{15}{2}x-20$

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3 years ago

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Vlad [161]

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