How to Calculate Y-Intercept in Excel. The y-intercept is the point at which a linear equation crosses the y-axis on the x=0 plot point. The equation to determine both the slope and the y ...

y = mx + c Any equation that can be rearranged into the form y = m x + c, will have a straight line graph. m is the gradient, or steepness of the graph, and c is the y - intercept, or where the ...

Watch this video to find out how the equation 𝑦 = 𝑚𝑥 + 𝑐 can be used to work out the gradient and 𝑦-intercept on a straight line graph.