How to Graph a Function in Excel. A mathematical function is a formula that takes an input, x, applies a set of calculations to it, and produces an output called y. By calculating a function at a ...

To draw the graph we need coordinates. ... Well done – you have drawn a graph of a quadratic function! 1 of 8. Previous image Next image. Slide 1 of 8, , Click to see a step-by-step slideshow.

Draw the graph of \(y = x^2 -x – 4 \) and use it to find the roots of the equation to 1 decimal place. Draw and complete a table of values to find coordinates of points on the graph. x ...

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