 When would you use a line graph?

Algebra - Graphs 3

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The words 'intersect' and 'linear' are related to graphs, but what do they mean? Graphs illustrate information that would be unwieldy in text form and act as visual shorthands for everyday concepts.

In this Math quiz we look at some of the terms you are likely to encounter in the world of graphs.

1.
A part of a line is called what?
Line part
Line piece
Line portion
Line segment
2.
What is the word that means to cross over?
Interscope
Intersect
Interserve
Intersport
The place where a line crosses over an axis is the place where it intersects the axis
3.
Which of these could not be shown on a 'distance-time graph'?
The number of people on a journey
The speed during part of a journey
The time spent stationary during a journey
The total time taken for a journey
Distance-time graphs are sometimes called 'travel graphs'
4.
What is the meaning of the word 'gradient'?
The length of a line
The starting-point of a line
The steepness of a slope
The width of a line
You will sometimes see references to the gradient of a line in a graph. If you were walking, then a 'steep gradient' would be difficult to walk up but a 'gentle gradient' would be easy to walk up
5.
Working out the points on a graph and putting them in the right place is known as what?
Plodding
Plonking
Plotting
Ploughing
6.
This is an example of coordinates on a graph: (7, -9). To what do the figures refer?
Both numbers within brackets are on the same axis
Figures in brackets are always for the y axis
The x axis value, then the y axis value
The y axis value, then the x axis value
It is just SO IMPORTANT to remember this: 'x comes before y in the alphabet and the x axis figure comes before the y axis figure'
7.
What would you expect a 'conversion graph' to do?
Convert letters into numbers
Convert one unit to another
Convert you to become a lover of graphs
Convert your family to Buddhism
It might convert miles to kilometers, grams to ounces, etc.
8.
If a graph is described as 'quadratic' then what would you expect to see in the equation?
The squared sign: 2
The cubed sign: 3
The power of 4 sign: 4
Any exponent
An exponent is a small number placed to the upper-right of a number as in 32 or 45
9.
When a graph is said to be 'linear' what would you expect?
Lines that are curved
Lines that are straight
No lines, just points that have been plotted
Numerous lines starting at the same point
10.
If a curve on a graph is said to be 'symmetrical about the y axis', what would you expect?
Most of the curve to be in quadrant 2
Most of the curve to be in quadrant 1
None of the curve to be below the x axis
The left hand side to be a mirror image of the right hand side
The word symmetry means that one half mirrors the other half
Author:  Frank Evans

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