Save guides, add subjects and pick up where you left off with your BBC account. A linear equation is drawn as a straight line on a set of axes. To draw the graph ... y = 2x + 1, calculate the ...

Capture relationships between data sets by graphing linear equations in Microsoft Excel ... Most graphs chart data that you currently have,... How to Find a Qualitative Variable in Excel How ...

Some important points to revise from the chapter are: • An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear ...