Forming equations of given straight line graph (using y=mx+c)

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Learning objective overview

Master Teaching Guide coverage for this objective.

CorbettMaths on y=mx+cQuestions PDF · Answers
Beta: Plotting co-ordinates, Ex 13.01, pgs 230 & 231
Beta: Drawing line from equation, Ex 13.02, pg 233
Beta: Gradients, Ex 13.03 to Ex 13.06, pgs 235 & 239
Beta: Intercept of lines, Ex 13.07 to Ex 13.08, pgs 240 & 241
Beta: Horizontal and vertical lines, Ex 13.09, pg 243
Beta: Applying straight-line rules, Ex 13.10, pgs 244 to 246
Dr Austin Maths - Finding Equations of Straight Lines from Graphs Practice GridQuestions PDF · Answers
Dr Austin Maths - Finding Harder Equations of Straight Lines from Graphs Practice GridQuestions PDF · Answers
Dr Austin Maths - Equation of a Straight Line Revision Practice GridQuestions PDF · Answers

Form the equation of a straight line using the formula $y = mx + c$ when given the gradient and y-intercept.
Identify gradient $m$ and y-intercept $c$ from a line on a graph and use these to write the equation.
Use the y-axis crossing point and rise-over-run to determine both parameters in $y = mx + c$.
Write equations for lines with integer and fractional gradients, including negative gradients.
Apply the equation form to predict values and understand the behaviour of linear relationships.