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Lesson details

Key learning points

  1. In this lesson, we will revisit equations for linear graphs and coordinates and investigate the relationship between solving simultaneous equations, and their appearance when plotted.

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5 Questions

Q1.
In y = 3x + 2, what does the 3 represent?
Correct answer: The gradient
The x-ordinates
The y-intercept
The y-ordinates
Q2.
In y = 3x + 2, what does the 2 represent?
The gradient
The x-ordinate
Correct answer: The y-intercept
The y-ordinates
Q3.
Which of the following coordinates lies on y = 2x - 4?
(-2, -6)
Correct answer: (-2, -8)
(2, 2)
(3, 4)
Q4.
Which of the following coordinates lies on y = -3x + 1?
(-1, -2)
Correct answer: (-3, 10)
(1, -4)
(3, -10)
Q5.
Why will y = 3x - 5 and y = 3x + 1 NOT intersect?
Correct answer: Because the gradient is the same.
Because the gradients are too large.
Because the y-intercept has a negative.
Because the y-intersects are too far apart.

Lesson appears in

UnitMaths / Solving linear simultaneous equations graphically