[Tutorial: Integrated Rate Law]: This tutorial will walk you through the use and interpretation of integrated rate laws. Step 3. Finding the rate constant. The slope of the line is related to the rate constant, k. From the integrated rate laws, which of these options best describes how to identify the value of the rate constant, k ? A) First order: k= slope, Second order: k= slope B) Zeroth order: k= slope, First order: k= slope C) First order: k= slope, Second order: k= -slope [Tutorial: Integrated Rate Law]: This tutorial will walk you through the use and interpretation of integrated rate laws. Step 3. Finding the rate constant. The slope of the line is related to the rate constant, k. From the integrated rate laws, which of these options best describes how to identify the value of the rate constant, k ? A) First order: k= slope, Second order: k= slope B) Zeroth order: k= slope, First order: k= slope C) First order: k= slope, Second order: k= -slope