How to find the y-intercept given y=2x+4? Algebra Graphs of Linear Equations and Functions Intercepts by Substitution 1 Answer Gió May 15, 2015 Set x=0 in your equation to get the intercept: y=4 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? What is the y intercept for x=−1? How do you find the intercepts of x2y−x2+4y=0? See all questions in Intercepts by Substitution Impact of this question 1910 views around the world You can reuse this answer Creative Commons License