Chapter 1 - Linear Functions - 1.3 Fundamentals of Graphing and Slope - 1.3 Exercises - Page 52: 60

incorrect Slope: $7$ $y$-intercept: $(0,-4)$

Rearrange the equation into slope-intercept form. $7x-y=4$ $-y=-7x+4$ $y=7x-4$ The slope is the coefficient of $x$, and the constant term that is added is the $y$ value in the $y$-intercept of $(0,y)$. Slope: $7$ $y$-intercept: $(0,-4)$ The student was incorrect. The student did not divide both sides by $-1$ when $y$ was negative.