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caggh345
15.01.2020 •
Mathematics
Which function corresponds to the table?
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Ответ:
The values of the variables in the table can be generated by a function, given that each input has exactly one output.
The function that corresponds to the table is C) y = -2·x + 3
Reasons:
To determine the type of function, the first difference between the y-values in the table are found as follows;
The difference between the consecutive y-values are;
1 - 3 = -2
-1 - 1 = -2
Therefore, the first difference is constant, therefore, the function is a linear function.
The equation of the function in point and slope form is therefore;
y - (-1) = -2·(x - 2)
y = -2·x + 4 - 1 = -2·x + 3
y = -2·x + 3
Therefore, the function that corresponds to the table is C) y = -2·x + 3
Learn more here:
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Ответ:
Work Shown:
Using the slope formula, find the slope of the line through (0,3) and (1,1)
m = (y2 - y1)/(x2 - x1)
m = (1 - 3)/(1 - 0)
m = (-2)/(1)
m = -2
The slope is -2
The y intercept is 3 since x = 0 leads to y = 3 in the first row of the table
So b = 3
Plug m = -2 and b = 3 into y = mx+b
y = mx+b
y = -2x+3
Ответ:
sin(angle) = opposite leg/ hypotenuse
sin(68) = 14/AC
AC = 14/sin(68)
Change to multiplication:
AC = 14 x cosec(68)
The answer is the second choice