Q. How many solutions does the system of equations below have?y=−7x+10y=−47x−47Choices:(A)no solution(B)one solution(C)infinitely many solutions
Analyze Equations: Analyze the given system of equations to determine the number of solutions.We have two equations:y=−7x+10 (Equation 1)y=−47x−47 (Equation 2)To find the number of solutions, we need to compare the slopes and y-intercepts of the two lines represented by these equations.
Identify Parameters: Identify the slopes and y-intercepts of the two lines.For Equation 1, the slopem1 is −7 and the y-interceptb1 is 10.For Equation 2, the slope m2 is −47 and the y-intercept b2 is −47.
Compare Slopes: Compare the slopes of the two lines.If the slopes are equal and the y-intercepts are different, the lines are parallel and there is no solution.If the slopes are equal and the y-intercepts are also equal, the lines coincide and there are infinitely many solutions.If the slopes are different, the lines intersect at one point and there is one solution.
Determine Solutions: Determine the number of solutions based on the comparison.Since m1=−7 and m2=−47, the slopes are not equal. Therefore, the lines are not parallel and will intersect at one point.
Conclude Solution: Conclude the number of solutions for the system of equations.Because the lines intersect at one point, there is exactly 1 solution to the system of equations.
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