![]() ![]() If the quadratic term is negative, the parabola opens down.If we have a positive quadratic term, the parabola opens up and is U-shaped.Alternatively, we can solve without a graph by considering the following: Step 3: Sketch a simple graph of the function $latex y=ax^2+bx+c$ to determine the solution. To achieve this, we can solve the quadratic equation by factoring $latex ax^2+bx+c=0$ and find the x values. Step 2: Identify where the graph of $latex y=ax^2+bx+c$ intersects the x-axis. The “<” sign could be different depending on the problem. Step 1: Simplify and write the inequality in the form $latex ax^2+bx+c<0$. What is different in the graphing process of an equality and an inequality? How can you check the x-intercepts of a quadratic equation or inequality? Why is it important to test 3 intervals after you have found the critical x values?Īssignment 1.9, 3-24 every 3rd problem, 36-57 every 3rd problem Assignment 1.To solve quadratic inequalities, we can follow the following steps: ![]() If true, shade where the point is located. Pick a point not on the parabola and see if it makes a true statement. ![]()
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