Straight-line graphs 2 (Edexcel GCSE Maths): Flashcards
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Practise the cards
12 cards from this deck
Standard form of straight-line equation
Standard form of straight-line equation
What does represent in ?
What does represent in ?
The gradient
What does represent in ?
What does represent in ?
The y-intercept
Method 1 Step 2: After writing
Method 1 Step 2: After writing
Substitute the gradient for
Method 1 Step 3: After substituting gradient
Method 1 Step 3: After substituting gradient
Substitute the x and y coordinates of the given point
Formula for calculating gradient from two points
Formula for calculating gradient from two points
Gradient = rise ÷ run (vertical change ÷ horizontal change)
Definition of parallel lines
Definition of parallel lines
Lines that never meet and stay the same distance apart
Key property of parallel lines' gradients
Key property of parallel lines' gradients
Parallel lines have identical gradients
First step when given two points (Method 2)
First step when given two points (Method 2)
Draw a sketch showing both points clearly
To find parallel line equation, what gradient to use?
To find parallel line equation, what gradient to use?
Use the same gradient as the given line
How to check your straight-line equation is correct?
How to check your straight-line equation is correct?
Substitute one of the original points back into your equation
After finding gradient in Method 2, what next?
After finding gradient in Method 2, what next?
Use Method 1 with calculated gradient and one given point