Using gradient to solve problems with parallel lines

Using gradient to solve problems with parallel lines

Lesson details

Key learning points

  1. In this lesson, we will use the gradient of a line to solve problems with parallel lines. We will investigate the relationship between different linear graphs with the same gradient.

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3 Questions

Q1.
1) What is the gradient of the line y=4x-5
-5
1
Correct answer: 4
4/5
Q2.
2) What is the y intercept of the line y=7x-2
Correct answer: -2
-3.5
3.5
7
Q3.
3) Work out the gradient of the line 2y + x = 20
Correct answer: -0.5
-1
0.5
1

3 Questions

Q1.
Which of these equations of a line is parallel to y = 5x− 8?
y=-5x
y=-5x-8
Correct answer: y=5x+4
y=x-8
Q2.
Which of these equations of the line is parallel to y = 3x + 5 and passes through (0, 2).
y=-3x+2
y=3x
Correct answer: y=3x+2
y=3x+4
Q3.
Which of these equations of the line is parallel to x + y = 8 and passes through (0, -4).
Correct answer: y = -x -4
y = -x + 4
y = -x + 8
y = x -4

Lesson appears in

UnitMaths / Revise - Linear and Quadratic Graphs

UnitMaths / Straight Line Graphs (y=mx+C)