We can calculate the gradient of a tangent to a curve by differentiating. In order to find the equation of a tangent, we: Differentiate the equation of the curve Substitute the \(x\) value into ...

Watch this video to learn about the equation of a straight line. Since we are given 2 points that already lie on the line, using the formula as before, we need to calculate the gradient first.

The velocity of blood flow across the aortic valve, as determined by continuous-wave Doppler, is used to calculate the transaortic pressure gradient using the modified Bernoulli equation ...