The line parallel through the equation 3x+y=18 must have a slope equal to -3.
What is a straight line graph?
- The graph follows a straight line equation shows a straight line graph.
- equation of a straight line is y=mx+cy represents vertical line y-axis.
- x represents the horizontal line x-axis.
- m is the slope of the line
slope(m)=tan∅=y axis/x axis.
- c represents y-intercepts (it is the point at which the line cuts on the y-axis)
Straight line graphs show a linear relationship between the x and y values.
calculation:-
To check whether the line is parallel or not the slope of both the line must be equal.
⇒3x+y=18
⇒ y = -3x+18
slope (m)= -3
Learn more about straight lines here:-https://brainly.com/question/14323743
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