Sam answered 5 questions incorrectly on a test. For each
incorrect answer 3 points were
deducted from a score of 100.
What was Sam's Score?

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.