Linear Algebra

Question 1

You can graph any line by making a _________ and _________

Answer 1

Table of values

Plotting points

Question 2

General equation of a straight line =?

Answer 2

y=mx+c

Question 3

The ‘c’ at the end of the general equation of a straight line represents?

Answer 3

Y intercept

Question 4

The “m” in the general equation of a straight line represents?

Answer 4

The gradient

Question 5

How do you plot a gradient?

Answer 5

Rise over run

Rise/run

Question 6

3 steps for plotting a straight line using the gradient - intercept method?

Answer 6

1. Plot the y intercept
2. Plot the gradient
3. Rise and run again from the point you are at for accuracy
4. Draw line

Question 7

Negative gradients indicate that?

Answer 7

The line slopes backwards

Question 8

Where would the line “y=8” fall?

Answer 8

A horizontal line through all the points where y=8

Question 9

Where would the line “x=-2” fall?

Answer 9

A line through every point where x=-2 VERTICAL

Question 10

Equations with an x2 (x squared) term describe a graph called a?

Answer 10

Parabola

Question 11

To graph a parabola you?

Answer 11

Do a table of values with random numbers (around 0 is easiest) and then plot the pints and draw a smooth curve through them