Solve for y
Part of the Graphs & Systems section of Coddy's Algebra journey. Lesson 17 of 61.
An equation is not always given in slope-intercept form. The equation describes a line, so it can be written as . To find that form, solve the equation for , then divide each term:
Now you can read the slope, , and the y-intercept, (0, 2). The last step splits the fraction into two terms. Without it, the answer is correct, but you cannot read and from it.
For a nonvertical line, isolate y and simplify the right side to . The coefficient of x is the slope m, and the constant term is the y-intercept b.
Challenge
MediumRewrite in slope-intercept form. Solve for , then multiply everything out.
Try it yourself
Get alone, and multiply out the other side
All lessons in Graphs & Systems
4Slope-Intercept Form
y = mx + bThe Starting HeightWrite the EquationSolve for yDraw From Any FormRecap: y = mx + b7Parallel & Perpendicular
Same Slope, Never MeetThe Perpendicular SlopeA Right-Angle LineRecap: Two Relations