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2 years ago

Note: Enter your answer and show all the steps that you use to solve this problem in the space provide.

Mathematics

1 answer:

enot [183]2 years ago

6 0

The value of x from the given equation is 6

<h3>Solving linear equation</h3>

Linear equation are equation that has a leading degree of 1. A linear expression is given as y =ax + b

Given the linear equation below;

7x = 42

We are to determine the value of x

Divide both sides by 7

7x/7 = 42/7

x = 6

Hence the value of x from the given equation is 6

Learn more on linear equation here: brainly.com/question/2030026

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Pie

For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cutoff point with the y axis

We need two points through which the line passes to find the slope:

$(0, -4)\\(1,0)$

We found the slope:

$m = \frac {y2-y1} {x2-x1}\\m = \frac {0 - (- 4)} {1-0} = \frac {4} {1} = 4$

So, the equation is of the form:

$y = 4x + b$

We substitute a point to find "b":

$-4 = 4 (0) + b\\-4 = b$

Finally, the equation is:

$y = 4x-4$

Answer:

Option D

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