Q. Which describes the system of equations below?y=−3x−4y=38x+25Choices:(A)inconsistent(B)consistent and independent(C)consistent and dependent
Analyze System Type: Analyze the given system of equations to determine its type.We have two equations:y=−3x−4 (Equation 1)y=38x+25 (Equation 2)To determine if the system is consistent and independent, consistent and dependent, or inconsistent, we need to compare the slopes and y-intercepts of the two lines represented by these equations.
Identify Slopes and Intercepts: Identify the slopes and y-intercepts of the two lines.For Equation 1, the slope (m1) is −3 and the y-intercept (b1) is −4.For Equation 2, the slope (m2) is 38 and the y-intercept (b2) is m10.
Compare Slopes: Compare the slopes of the two lines.If the slopes are equal and the y-intercepts are also equal, the system is consistent and dependent (the lines are the same).If the slopes are equal and the y-intercepts are different, the system is inconsistent (the lines are parallel and never intersect).If the slopes are different, the system is consistent and independent (the lines intersect at one point).
Determine System Type: Determine the type of system based on the slopes and y-intercepts.Since m1=−3 and m2=38, the slopes are not equal.Therefore, the system is consistent and independent because the lines will intersect at exactly one point.