On the other end of the spectrum, the materials with the lowest conductivities, or best insulators, are glass, ceramic, rubber and some plastics. Not all materials are classified as insulators or conductors, because in the real world, they don't do a particularly good job of either one.
The point where the graph of a function crosses the x-axis or y-axis. y-intercept. The point where the graph crosses the y-axis. In a linear equation of the form y=mx+b. The y-intercept is the constant b. constant of proportionality. The constant ratio between two quantities. EX: 1/4, 2/8, 3/26.
To find the x-intercept, set y = 0 and solve the equation. For example, to find the x-intercept of 5y - 2x = 10 : 5(0) - 2x = 10. -2x = 10. x = - 5. Thus, the x-intercept, or the point at which the line crosses the horizontal axis, is (- 5, 0) . To find the y-intercept, set x = 0 and solve the equation.For example to find the y-intercept of 5y - 2x = 10 : 5y - 2(0) = 10. 5y = 10.y = 10. y = 2. Thus, the y-intercept, or the point at which the line crosses the vertical axis, is (0, 2) . Hence, to find the intercept of either variable, set the other variable equal to 0 and solve for the original variable.