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Which graph can be used to find the solution(s) to x2 – 1 = 3?
Answer:Step-by-step explanation:x² – 1 = 3This equation is in the form of y = x² – 1, which is a quadratic equation.If y = 3x² – 1 = 3x² = 3 + 1x² = 4x = ±√4x = ±2For x = +2 and -2 value of y is the same as 3.That reveals the graph is symmetrical about y axis and passes through (2, 3) and (-2, 3).Moreover this, vertex of the parabola will be (0, -1).
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