Coretta wants to create a system of equations so that the system has only one solution. Which of these can Coretta do? Check all that apply.

A system of two linear equations has exactly one solution when the two lines intersect at one point. Different slopes guarantee that the lines cross once, so choices C and E describe systems with one solution. Equivalent equations and lines lying on top of each other represent the same line and have infinitely many solutions; lines that stay the same distance apart are parallel and have no solution.

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