Answer:
<h2>y = 3x + 3</h2>
Step-by-step explanation:
The slope-intercept form of an equation of a line:
m - slope
b - y-intercept
The formula of a slope:
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From the table we have :
x = 1 → y = 6
x = 2 → y = 9
x = 3 → y = 12
x = 4 → y = 15
Calculate the slope (choice any two pairs, and calculate the slope):
(1, 6), (2, 9)
We have the equation:
Put the coordinates of the point (1, 6) to the equation, and solve it for b:
<em>subtract 3 from both sides</em>
Finally:
P(t) = 451400*0.968^t . . . . . models the population after t years.
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The multiplier from one year to the next is (1 -3.2%) = (1 -.032) = 0.968.
Answer:
Hardness.
Step-by-step explanation:
A mineral's hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.
Answer:
No complex roots; 3 real roots
Step-by-step explanation:
If a third order polynomial has any complex roots, then as a rule it has 1 real root and 2 complex roots. In this particular case, the polynomial has three real roots, as can be determined by graphing the function. The graph crosses the x-axis in 3 places.
