Straight-line graphs 1 (Edexcel GCSE Maths): Flashcards

Straight line

Gradient (or slope)

Y-intercept

Slopes upwards from left to right

Slopes downwards from left to right

Where the line crosses the y-axis

$(0, c)$

Rise ÷ run or change in $y$ ÷ change in $x$

$-2, -1, 0, 1, 2$

At least three points

Ruler

Choose x, substitute, make table, plot points, join with ruler

Identify gradient and y-intercept, substitute into $y = mx + c$