The slope of a line is –2 and its y-intercept is (0, 3). What is the equation of the line that is parallel to the first line and passes through (2, 2)?

Question

anonymous · Answer

If the second line is parallel to the first line, then they must share the same slope, -2.

anonymous · Answer

So, you know that the equation of the line must be of this form:
$$y = -2x + b$$

anonymous · Answer

How do you find the value of b? You know that the line passes through (2, 2). Plug in the values x=2, y = 2 and solve for b.

anonymous · Answer

thanks

anonymous · Answer

so would it be 2x+y=6

anonymous · Answer

Correct.

courtneygraley009 · Answer

Slope of a line is the value which defines the direction (horizontal, vertical, increasing, or decreasing) and steepness of that line. Using this online slope calculator http://www.acalculator.com/slope-calculator.html, you can easily determine the slope of the line.