Step 1: Look at the graph and identify how many times it crosses the x-axis. Step 2: Look at where the graph crosses the x-axis. These are the roots of the ... |
Finding roots using functions. A LEVEL LINKS. Scheme of work: 1b. Quadratic functions – factorising, solving, graphs and the discriminants. Practice questions. |
Question 1: The graph of is drawn on the grid. (a) Write down estimates for the roots of. (b) Use the graph to Oind an estimates for the roots of. (c) Write ... |
(b) Use the graph to find the roots of the equation x2 – 2x – 3 = 0 ... (b) Use the graph to find the roots of the equation x2 + 2x – 5 = 2. |
We can take the square root of this positive amount and there will be two different real answers (or roots) to the equation. |
For each of the graphs, state the number of real roots and/or complex roots. What is the minimum degree of the polynomial? |
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