Answer:
-line graph
Step-by-step explanation:
We are going to take the definition of all the terms and then deduced our correct answer.
<u>Pictograph</u> : Pictograph also known as pictogram uses picture to represent data.
<u>Pie graph</u>: It is a chat that uses pie slices to represent relative size of data.
<u><em>Line graph:</em></u> A line graph is a graph with points connected by lines to show changes in value over time.
<u>Bar graph</u>: A bar graph uses rectangular box known as bars to represent data, it is relatively used to show size
<u>Double bar graph</u> : A double bar graph uses two bars beside each other two represent data. It can be used to compare two data groups.
From the above definition, we can deduced that the word that shows data over time is the line graph
How to find rapidly the coordinates of Q:
since Q is the center of gravity of the triangle ABC, so we have the following vector relationship
vecQA +vecQB +vecQC =<span>vec0
</span><span>vecQA=(x-3, y+2)
</span><span>vecQB=(x-1, y+5)
</span><span>vecQC=(x-7, y+5)
</span><span>vec0=(0, 0)
</span>
so, vecQA +vecQB +vecQC =<span>vec0 is equivalent to
</span>x-3 +x-1+x-7 =0, and y+2+y+5+<span>y+5=0 so 3x-11=0 implies x=11/3
</span><span>and 3y+12=0 implies y=-12/3
finally the </span><span>the coordinates of point Q is (11/3, -4)</span><span>
</span>
Answer:
y = -x+3
Step-by-step explanation:
Slope intercept form => y = mx+b
To find 'm', the slope, pick 2 coordinates.
(0,3)
(2,1)
Use this equation to find the slope using these 2 coordinates: (y1 - y2)/(x1 - x2)
(3 - 1)/(0 - 2) = -1
m = slope = -1
'b' is the y-intersept, or the point when a line passes through the y-axis. That's (0,3).
b = y-intercept = 3
<em>So the equation will be y = -1x + 3, or y = -x + 3</em>
