Find the vertex of the parabola f(x)=x2-6x+13

Rewrite in standard form using (h,k) to find the vertex.
(3,4) is the answer.

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.