 Hey math learners! Mr. Marks here, your friendly neighborhood math teacher. Remember, it's not just about getting the right answers. It's also about learning and growing along the way. Now today's multiple choice problem comes to us from Pennsylvania's Keystone exam sampler pack and was user requested by at me as a toilet on YouTube. Now this problem involves a little bit of linear equations. So what do you say we uncover the mysteries this problem holds together? First let's read the problem's instructions. The equation 3x plus y equals 8 describes a function of x, which graph represents the function? All right, it looks like we have four graphs to choose from here. There are so many ways that we could proceed, it could be quite overwhelming. What ways are you thinking of for today? What do you say we first start by making some observations? For each of them, let's first note the y-intercept. The y-intercept of a line is the value of y, where the line crosses the y-axis. So for a, our y-intercept is 8. For b, our y-intercept is 0. For c, our y-intercept is 8. And for d, our y-intercept is 8. Hey, what a great start.