Coordinate Geometry - The Line

Question 1

What is (0,0)?

Answer 1

The origin

Question 2

What are Quadrants shortened as?

Answer 2

Q (number)

Question 3

What are other words for midpoint (of a line segment)?

Answer 3

Middle of the line, centre point or halfway point

Question 4

What does the midpoint do?

Answer 4

It divides the segment into 2 equal parts

Question 5

What is the formula for midpoint?

Answer 5

(x1,x2)
+(y1,y2)
divide answer by 2

Question 6

What does the line segment start and end with?

Answer 6

A point

Question 7

What is the distance (between 2 points) formula?

Answer 7

√(x2-x1)² + (y2-y1)²

Question 8

What is the symbol for distance?

Answer 8

|(letter letter)|

Question 9

What is surd form?

Answer 9

√(number)

Question 10

If there aren’t any units then what do you write?

Answer 10

units

Question 11

What should you always round your number to unless stated otherwise?

Answer 11

To 3 decimal places

Question 12

To measure the slope of a line using a graph what formula should you use?

Answer 12

m=rise
run

Question 13

What is the formula for finding a slope of a line without a graph?

Answer 13

m=y2-y1
x2-x1

Question 14

What should you always check on a slope’s line before writing down your answer?

Answer 14

If the line is decreasing or increasing

Question 15

What does it means if the slopes are the same/ equal?

Answer 15

They’re parallel

Question 16

What is the symbol for parallel lines?

Answer 16

|
| |

Question 17

What do perpendicular lines not have?

Answer 17

The same slope

Question 18

What should the answer of a perpendicular line look like?

Answer 18

The reciprocal of one another with 1 slope being negative

Question 19

What is the formula to check your answers for perpendicular lines are correct?

Answer 19

m1 x m2= -1

Question 20

What is the symbol for perpendicular lines?

Answer 20

|
___

Question 21

What are the 3 formulas to show the equation for a line?

Answer 21

1. y-y1=m(x-x1)
2. ax+by=c
3. ax+by+c=0

Question 22

What should there not be in formulas to find the equation of a line?

Answer 22

Fractions

Question 23

What do you need to look out for on graphs?

Answer 23

The intervals it’s going in

Question 24

What formulas are used to find the equation of a line?

Answer 24

1. y-y1=m(x-x1)
2. y (<– y-intercept) =mx+c

Question 25

What is the y-intercept?

Answer 25

Where your lines crosses the y-axis

Question 26

How do you verify a point is on a line?

Answer 26

Sub the point into the line

Question 27

What should the x and y values do?

Answer 27

Satisfy the equation

Question 28

What should you write after mathematically verifying a point is on a line?

Answer 28

Point is on the line