Te reo Māori terms
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Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
NA5-9
New NZC (2026)
NZC26-P4-ALG-ER-K-Y9-05NZC26-P4-ALG-ER-P-Y10-06NZC26-P4-ALG-ER-K-Y10-08NZC26-P4-ALG-ER-P-Y10-05NZC26-P4-ALG-ER-P-Y10-08
Resources
- 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
Terminology
- Equation of a line
- Gradient
- Slope
- y-intercept
- y = mx + c
- m (gradient coefficient)
- c (y-intercept constant)
- Linear equation
- Rise and run
- Positive gradient
- Negative gradient
- Horizontal line
Task goals
- 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.
Where this fits
What leads into this objective, and where it goes next.
You are here
Forming equations of given straight line graph (using y=mx+c)
Know
For a specific straight line, the gradient, m, and y-intercept, c, are fixed, and x varies with y according to the rule y = mx + c.
Statement▸
Year 9 · Algebra · Equations and relationships
NZC26-P4-ALG-ER-K-Y9-05
Also under NA5-9:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.