1. Mathsercise-C Graphs 1 Ready? Here we go!

2. Graphs 1 Complete this grid for the function y = 3x + 1 1 x y 1-220-33 7 -2 Answer Question 2 Substitute each value in turn into the equation. Start with the 0 as it is easier! If x = 0, y = 3 x 0 + 1 Y = 1 If x = 1, y = 3 x 1 + 1 Y = 4 10 -8-5 Do you notice that the pattern goes up in 3’s. Why is this?

3. Use the grid box from Q1 to plot and draw the graph of y = 3x + 1 2 Graphs 1 1 2 3 4 5 6 7 -2 -3 -4 -5 -6 123456 7 -2-3-4-5-6 -7 Answer x y 1-220-33 -2 71 -8 4 -5 10 Now plot the co- ordinate pairs x x xx x This is the line y = 3x + 1 Question 3

4. Graphs 1 Complete this grid for the function y = 2x - 5 3 x y 1-220-33 -9 Answer Question 4 -5 -11 -7 1 What do you notice about the pattern again?

5. Use the grid box from Q3 to plot and draw the graph of y = 2x - 5 4 Graphs 1 1 2 3 4 5 6 7 -2 -3 -4 -5 -6 123456 7 -2-3-4-5-6 -7 Answer Start x y 1-220-33 -7 -5 -11 -3 -9 1 x xxx This is the line Y= 2x - 5