# Graphs Of The Galaxy

## Linear equations

We're on our way to Mars - except there's too much junk in the way! Match the linear equations to blast space debris with your laser spacecraft.

## Selection of related activities

Curriculum-aligned activities

• ### Recognise common straight line graphs

Know what these sort of lines look like and where they are on the axes. y = 3, x = -6, y = x + 3, x + y = 5

• ### Draw straight line graphs using y = mx + c

e.g. Draw the graph of y = -0.5x - 3

• ### Find the gradient of a line using its graph

Find the gradient of a line using a graph. e.g. Look at a line y = 2x + 1 on a graph. Measure the gradient of the line

• ### Find the gradient of a line from 2 points

Find the gradient of a line without a graph by knowing 2 points the line goes through. e.g. A line passes through the points (2 , 5) and (5 , 17). What is the gradient of the line

• ### Find the gradient and y intercept from the equation of a line

Know the formula y = mx + c and understand that m = gradient and c = y-intercept. Work out the gradient and y-intercept from the equation of a line without the graph. e.g. What is the gradient and y-intercept of the line y = 4x+2

• ### Match together equations and lines

Know the formula y = mx + c and understand that m = gradient and c = y-intercept. Match graphs of straight lines to their equations. e.g. If you have 3 straight line graphs drawn, match them to y = 2x+1, y+x = 4, y = -3x-5

## What teachers say about Mangahigh

We’re loved by both teachers and students globally. Here’s the proof!

• Mangahigh turns our students into “maths addicts“ who compete with each other for top scores and gold medals. And since the quizzes reward both accurate recall of knowledge and deep conceptual understanding, every hour they spent having fun makes them better mathematicians. Five stars.

###### Tom Ding

• I have used Mangahigh in my classroom for over 5 years. What keeps me coming back are the math games and wide range of concepts that are offered. But the best part is the fact that the kids LOVE to play it. I have students beg me to assign them Teacher Challenges! Begging for more math work? I am ok with that!!

###### Renee Hernandez

Green Elementary School, Allen, Texas

• Kids loved it; an ADHD student who has NEVER before been able to focus in the last periods of the day; he wouldn't stop till he got a medal! Absolutely phenomenal! His mother is overjoyed, and the rest of the maths staff room were gobsmacked!

###### Joseph Peacock

Emanuel School, NSW