3 years ago

Which graph represents a function

Mathematics

1 answer:

Alecsey [184]3 years ago

5 0

The answer 3 would be the right answer

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ASAP!!!!!

In-s [12.5K]

Think of the given points as endpoints of vectors.

The point (3, 1) is the terminus of the vector 3 i + j.

The point (-4, 2) is the terminus of -4 i + 2 j.

By the "triangle rule" for vector summation, the vector starting at (3, 1) and ending at (-4, 2) is the difference between these two vectors.

(-4 i + 2j) - (3i + j) = -7 i + j

4 0

2 years ago

Which ratio is equivalent to the rate<br> 8 meters<br> 1 second<br> ?

KIM [24]

A unit rate where one is in the Denometer, so you would want to divide the bottom by 10.

5 0

2 years ago

HELP DUE IN 10 MINS! A cable that is 25 m long runs from the top of a utility pole to a point on the ground that is 20 m from th

Kryger [21]

Answer:

15 m

Step-by-step explanation:

x² + 20² = 25²
x² + 400 = 625
x² = 225
x = √225
x = 15

6 0

3 years ago

Write an equation of the perpendicular bisector of the segment joining a(-2,3) and b(4,-5).

Bas_tet [7]

Answer:

C) 3x - 4y = 7

Step-by-step explanation:

The midpoint of AB is

M( (-2 + 4)/2, (-5 + 3)/2 ) = M(1, -1)

Line AB has slope:

(3 - (-5))/(-2 - 4) = 8/(-6) = -4/3

Slopes of perpendicular lines are negative reciprocals.

A perpendicular to line AB has slope 3/4.

The perpendicular to line AB that passes through the midpoint of segment AB is the line we want.

$y - y_1 = m(x - x_1)$

$y - (-1) = \dfrac{3}{4}(x - 1)$

$y + 1 = \dfrac{3}{4}(x - 1)$

$4y + 4 = 3(x - 1)$

$4y + 4 = 3x - 3$

$3x - 4y = 7$

8 0

3 years ago

Read 2 more answers

Write an expression (simplified) for the perimeter of the given figure.

Lina20 [59]

Answer

i´m not sure what the answer is but hopefully these tips helped you

Step-by-step explanation:

first, sum up all sides of the lengths then simplify

4 0

3 years ago