3 years ago

F(x) = x^2 - 3x + 18

Mathematics

2 answers:

Marat540 [252]3 years ago

3 0

Answer: discriminant of f is -63

Step-by-step explanation:

olya-2409 [2.1K]3 years ago

3 0

Answer:

-63

and there are no distinct real numbers

Step-by-step explanation:

-63

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Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why

faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = $\frac{y2 - y1}{x2 - x1}$

Substitution

slope = $\frac{4 - 2}{-1 - 4}$

Simplification and result

slope = $\frac{-2}{5}$

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

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Step-by-step explanation:

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