Still Confused?

Try reviewing these fundamentals first.

- Home
- A-Level Maths
- Linear Functions

Still Confused?

Try reviewing these fundamentals first.

Still Confused?

Try reviewing these fundamentals first.

Nope, I got it.

That's that last lesson.

Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Intro Lesson5:49
- Lesson: 1a2:16
- Lesson: 1b2:02
- Lesson: 1c2:46
- Lesson: 2a2:38
- Lesson: 2b1:53

One of the ways to graph a linear function is by using the x-and y-intercepts. If we know any two points of a straight line, it's just a piece of cake to determine its equation and graph. In order to do that, we need to find out those intercepts by solving the function first.

Related concepts: Graphing linear functions using table of values, Graphing linear functions using various forms, Graphing linear functions using a single point and slope,

• To find the x-intercept, we plug in $y=0$ into the equation.
• To find the y-intercept, we plug in $x=0$ into the equation.

- Introduction
__Introduction to graphing linear functions using x- and y-intercepts__i) What are x- and y-intercepts?

ii) How to find the intercepts?

- 1.
**Determine The Graph of a Function**Graph the following functions using the X-int & Y-int

a)$y = 2x + 7$b)$3y = 5x - 6$c)$y = \frac{2}{3}x +4$ - 2.
**Determine The Graph of a Function in Standard Form**Graph the following functions using the x- and y-intercepts:

a)$-2x+3y=6$b)$x-y=4$

3.

Linear Functions

3.1

Distance formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

3.2

Midpoint formula: $M = ( \frac{x_1+x_2}2 ,\frac{y_1+y_2}2)$

3.3

Gradient equation: $m = \frac{y_2-y_1}{x_2- x_1}$

3.4

Gradient intercept form: y = mx + b

3.5

General form: Ax + By + C = 0

3.6

Gradient-point form: $y - y_1 = m (x - x_1)$

3.7

Rate of change

3.8

Graphing linear functions using table of values

3.9

Graphing linear functions using x- and y-intercepts

3.10

Graphing from slope-intercept form y=mx+b

3.11

Graphing linear functions using a single point and gradient

3.12

Word problems of graphing linear functions

3.13

Parallel and perpendicular lines in linear functions

3.14

Applications of linear relations