Year 9 Straight-Line Graphs Worksheets | Printable PDFs
Year 9 Straight-Line Graphs worksheets for Year 9 Maths (Key Stage 3). Students aged 13-14 extend their understanding of straight-line graphs and begin linking graphs to algebra. See Year 8 Straight-Line Graphs Worksheets to practise plotting simple linear equations.
To practice finding the find the equation of the line given two points, as well as parallel and perpendicular gradients check out Year 10 Straight-Line Graphs Worksheets. Here students practice drawing gradients, finding the equation of the line given the gradient and y-intercept as well as evaluating functions using graphs.
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For more Straight-Line Graphs Worksheets, see Year 10 Straight-Line Graphs Worksheets
Common Questions about Year 9 Straight-Line Graphs
What does the gradient of a line tell you?
The gradient tells you how steep a line is and how much the y-value changes for each increase of 1 in x.What is the equation of a straight line in the form y = mx + c?
m represents the gradient of the line and c represents the y-intercept, where the line crosses the y-axis.How can you find the equation of a line from its graph?
Find the gradient and the y-intercept from the graph, then substitute these values into y = mx + c.
Year 9 Straight-Line Graphs Common Mistakes
Common Mistake 1
Mixing up the gradient with the y-intercept in y = mx + c.Common Mistake 2
Counting the run before the rise when calculating the gradient.Common Mistake 3
Forgetting that a negative gradient means the line slopes down from left to right.
Straight-Line Graphs Worksheets - Free Worksheets Above
Finding the Equation of the Line (A)
Finding the Equation of the Line (A)
Finding Gradients