samtuck33
17.12.2019 •
Mathematics
From 12 teachers to 48 percent increase or decrease
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Ответ:
=> 12 * 0.48 = 5.76 or 6
=> 12 + 6 = 18 teachers if it increases to 48%
or decrease
=> 12 teachers - 6 teachers = 6 teachers.
if it decreases by 48%
Ответ:
The correct option is 1.
Step-by-step explanation:
It is given that the slope of the line is 6/5 and y intercept is -3. It means the line must be passes through the point (0,-3).
The slope intercept form of a line is
where, m is slope and b is y-intercept.
Substitute m=6/5 and b=-3 in the above equation to find the equation of line.
So, the equation of line is
.
Substitute y=0 in the above equation to find the x-intercept of the line.
Add 3 on both the sides.
Multiply both sides by 5.
Divide both sides by 6.
The x-intercept of the line is 2.5. It means the line must be passes through the point (2.5,0).
Since only in graph 1, the line passes through the points (0,-3) and (2.5,0), therefore the graph 1 represents the required line and option 1 is correct.