What is the y intercept for x=−1? Algebra Graphs of Linear Equations and Functions Intercepts by Substitution 1 Answer Wataru Nov 3, 2014 Since x=−1 is a vertical line, it does not hit the y-axis, so there is no y-intercept. I hope that this was helpful. Answer link Related questions What is the x and y Intercepts? How many intercepts can a line have? How do you use substitution to find intercepts? How do you identify the intercepts on a linear graph? How do you use the x and y intercepts to graph a linear equation? How do you find the x and y intercept for y=2x+3? How do you find the x intercept for y=2? What is the y intercept for the y=2 graph? How do you find the intercepts of x2y−x2+4y=0? How do you find the x-intercept of the line 6x+2y=24? See all questions in Intercepts by Substitution Impact of this question 9087 views around the world You can reuse this answer Creative Commons License