A given line has the equation [tex]10x + 2y = -2[/tex].

What is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point [tex](0, 12)[/tex]?

A. [tex]y = -5x + 12[/tex]
B. [tex]5x + y = 12[/tex]
C. [tex]y - 12 = 5(x - 0)[/tex]
D. [tex]5x + y = -1[/tex]



Answer :

To find the equation of the line that is parallel to the given line [tex]\(10x + 2y = -2\)[/tex] and passes through the point [tex]\((0, 12)\)[/tex], we will follow these steps:

### Step 1: Convert the Given Line to Slope-Intercept Form
The slope-intercept form of a line is [tex]\(y = mx + b\)[/tex], where [tex]\(m\)[/tex] is the slope and [tex]\(b\)[/tex] is the y-intercept.

First, we need to convert the given line [tex]\(10x + 2y = -2\)[/tex] to this form.
1. Solve for [tex]\(y\)[/tex]:
[tex]\[ 2y = -10x - 2 \][/tex]
2. Divide both sides by 2:
[tex]\[ y = -5x - 1 \][/tex]

Therefore, the slope of the given line [tex]\(m\)[/tex] is [tex]\(-5\)[/tex].

### Step 2: Use the Slope of the Parallel Line
Parallel lines have the same slope. Therefore, the line we are looking for also has a slope of [tex]\(-5\)[/tex].

### Step 3: Use Point-Slope Form to Find the Equation
We need to find the equation of the line with slope [tex]\(-5\)[/tex] that passes through the point [tex]\((0, 12)\)[/tex].

The point-slope form of a line is [tex]\(y - y_1 = m(x - x_1)\)[/tex], where [tex]\((x_1, y_1)\)[/tex] is a point on the line.
1. Plug in the slope [tex]\(m = -5\)[/tex] and the point [tex]\((0, 12)\)[/tex]:
[tex]\[ y - 12 = -5(x - 0) \][/tex]
2. Simplify the equation:
[tex]\[ y - 12 = -5x \][/tex]
[tex]\[ y = -5x + 12 \][/tex]

### Conclusion
The equation of the line that is parallel to [tex]\(10x + 2y = -2\)[/tex] and passes through the point [tex]\((0, 12)\)[/tex] is [tex]\(y = -5x + 12\)[/tex].

So the correct choice from the given options is:
[tex]\[ y = -5x + 12 \][/tex]