Q. How many solutions does the system of equations below have?y=−6x−9y=−6x+87Choices:(A)no solution(B)one solution(C)infinitely many solutions
Analyze System of Equations: Analyze the given system of equations to determine the number of solutions.The system of equations is:y=−6x−9y=−6x+87Both equations are in the slope-intercept formy=mx+b, where m is the slope and b is the y-intercept. To determine the number of solutions, we need to compare the slopes (m) and y-intercepts (b) of the two lines.
Compare Slopes: Compare the slopes of the two equations.The slope of the first equation is −6, and the slope of the second equation is also −6. Since the slopes are equal, the lines are either parallel or the same line.
Compare Y-Intercepts: Compare the y-intercepts of the two equations.The y-intercept of the first equation is −9, and the y-intercept of the second equation is 87. Since the y-intercepts are different, the lines are parallel and do not intersect.
Conclude Number of Solutions: Conclude the number of solutions based on the comparison of slopes and y-intercepts.Since the lines are parallel and have different y-intercepts, they will never intersect. Therefore, the system of equations has 0 solution.
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