to create a straight line. Substitute the gradient of 3 in place of 𝑚 in the equation 𝑦 = 𝑚𝑥 + 𝑐 to give 𝑦 = 3𝑥 + 𝑐. Substitute the values of 𝑥 and 𝑦 from the ...

Save guides, add subjects and pick up where you left off with your BBC account. The gradient is the measure of slope of a line. In order to work with gradients and straight lines successfully, a ...

You probably recognise equation 1 as the Nernst ... against membrane potential gives a straight line (is a linear function) if the membrane is perfectly selective for potassium ions. You also learned ...