Write the equation of the line that passes through the points (-2,9) and (2,6). Put your answer in fully simplified point-slope
1 answer:
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<h2>Answer:</h2>
√44
2 Real Roots
<h2>Step-by-step explanation:</h2>Looking at the image attached, the discriminant is the value under the square root.
In the equation given:
a = 1
b = -8
c = 5
The discriminant is therefore:
√(b²- 4ac) = √(-8²- (4*1*5)) = √(64-20) = √44
√44 is a positive number. Because it is positive, there must be 2 real roots.
If it were negative, there would be 2 imaginary roots.
If it were zero, there would be 1 real root.
Answer:
see explanation
Step-by-step explanation:
multiply both sides by 2 to eliminate the fraction
2d = 2 t + a
, that is
a + 2
t= 2d ( subtract 2
t from both sides )
at² = 2d - 2 t= 2(d -
t)
divide both sides by t²
a = 2(d - t) / t²