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How many solutions does the system have?\newline{y=7x+8y=7x8\begin{cases} y = -7x + 8 \\ y = -7x - 8 \end{cases}\newlineChoose 11 answer:\newline(A) Exactly one solution\newline(B) No solutions\newline(C) Infinitely many solutions

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Q. How many solutions does the system have?\newline{y=7x+8y=7x8\begin{cases} y = -7x + 8 \\ y = -7x - 8 \end{cases}\newlineChoose 11 answer:\newline(A) Exactly one solution\newline(B) No solutions\newline(C) Infinitely many solutions
  1. Analyze Equations: Analyze the system of equations.\newlineWe have the system:\newline{y=7x+8,y=7x8}:\{y=-7x+8, y=-7x-8\}:\newlineTo determine the number of solutions, we need to compare the slopes and yy-intercepts of the two lines.
  2. Identify Slopes and Intercepts: Identify the slopes and y-intercepts of the lines.\newlineThe slope-intercept form of a line is y=mx+by = mx + b, where mm is the slope and bb is the y-intercept.\newlineFor the first equation, y=7x+8y = -7x + 8, the slope (mm) is 7-7 and the y-intercept (bb) is 88.\newlineFor the second equation, y=7x8y = -7x - 8, the slope (mm) is also 7-7 and the y-intercept (bb) is mm22.
  3. Compare Slopes and Intercepts: Compare the slopes and yy-intercepts.\newlineBoth lines have the same slope, 7-7, but different yy-intercepts (88 and 8-8).\newlineSince the slopes are the same but the yy-intercepts are different, the lines are parallel and will never intersect.
  4. Conclude Number of Solutions: Conclude the number of solutions. Parallel lines never meet, so there are no points of intersection. Therefore, the system has no solutions.