👉 Learn how to find the slope between two points. The slope of a line is the steepness of the line. The horizontal line has ...

👉 Learn how to write the equation of a line given two points on the line. The equation of a line is such that its highest ...

Other students will draw the tangent line to the graph at t = 30 -- without ever having been told what a tangent line is or having seen one -- and measure its slope. The first approach, of course, is ...