What is the quadratic regression equation?
2 answers:
Answer:
y = -0.078 x² + 8.407 x − 92.892
Step-by-step explanation:
Use a calculator or spreadsheet to find the least squares regression equation.
Answer:
y = -0.078x^2 +8.407x -92.892
Step-by-step explanation:
Any of various graphing calculators, spreadsheets, or statistical analysis tools can give you the coefficients for a quadratic regression.
Attached is the output of a graphing calculator. Rounded to thousandths, the equation is ...
y = -0.078x^2 +8.407x -92.892
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Answer: y = 2x+22
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Explanation:
The equation y = 2x+5 is in the form y = mx+b
m = 2 = slope
b = 5 = y intercept
Parallel lines have equal slopes, but different y intercepts. So the answer will be in the form y = 2x+c, where b and c are different numbers. Since b = 5, this means c must be some other number. If c = 5, then we'd have the exact same line.
Let's plug in (x,y) = (-5,12), along with the slope m = 2, and solve for c
y = mx+c
12 = 2(-5)+c
12 = -10+c
12+10 = c
22 = c
c = 22
Since m = 2 and c = 22, we go from y = mx+c to y = 2x+22
The equation of the parallel line is y = 2x+22
The graph is below.
If an object has a density of less than g/ml, the object will float in water.
So, fourth option is correct
The object with density less than g/ml will float, and the object with a density more than
g/ml will sink.
So, if an object has a density of less than g/ml, the object will float in water.
Therefore, fourth option is correct
Learn more about density here: