Your Progress - Chapter 130% complete
1Exercises6 questions
Q.1What is the purpose of a graph?v
Answer:
A graph represents numerical facts visually so that trends and comparisons can be understood quickly.
Q.2What type of graph is used to show data changing continuously over time?v
Answer:
A line graph.
Q.3What are the coordinates of the origin?v
Solution
The origin is the point where the x-axis and y-axis meet.
Answer:
$(0,0)$.
Q.4In which quadrant does the point $(3,4)$ lie?v
Solution
Both coordinates are positive.
Answer:
First quadrant.
Q.5In which quadrant does the point $(-3,4)$ lie?v
Solution
The x-coordinate is negative and the y-coordinate is positive.
Answer:
Second quadrant.
Q.6Plotting a point $(x,y)$ means what?v
Answer:
Move $x$ units along the x-axis from the origin and then $y$ units parallel to the y-axis, using direction according to the signs of $x$ and $y$.