2

Mathematics

1 answer:

Crazy boy [7]2 years ago

7 0

Answer:

Each point (or pair in a proportional relationship) must share the same difference

Step-by-step explanation:

The graph of a proportional relation is a straight line through the origin. Such a line has the same ratio of y/x everywhere.

A relation in which the difference is constant will be a straight line, but it won't be through the origin. Such a relation is not proportional.

You might be interested in

Please help with number 16

Andre45 [30]

Answer:

2) reflexive property

3) given

4) substitution postulate

5) substitution postulate

6) addition postulate

7) partition postulate

8) equal length line segments are congruent

9) SSS theorem

Step-by-step explanation:

7 0

2 years ago

Complete the square to find the minimum value of the expression 4x2 + 8x + 23.

Tcecarenko [31]

So you need to come up with a perfect square that works for the x coefficients.
like.. (2x + 2)^2
(2x+2)(2x+2) = 4x^2 + 8x + 4
Compare this to the equation given. Our perfect square has +4 instead of +23. The difference is: 23 - 4 = 19

I'm going to assume the given equation equals zero..

So, If we add subtract 19 from both sides of the equation we get the perfect square.

4x^2 + 8x + 23 - 19 = 0 - 19
4x^2 + 8x + 4 = - 19
complete the square and move 19 over..
(2x+2)^2 + 19 = 0
factor the 2 out becomes 2^2 = 4
ANSWER: 4(x+1)^2 + 19 = 0

for a short cut, the standard equation
ax^2 + bx + c = 0 becomes a(x - h)^2 + k = 0
Where "a, b, c" are the same and ..
h = -b/(2a)
k = c - b^2/(4a)

Vertex = (h, k)
this will be a minimum point when "a" is positive upward facing parabola and a maximum point when "a" is negative downward facing parabola.

3 0

2 years ago

In the last basketball game, Elena scored 2 more than one fourth of her team's total points.

marysya [2.9K]

Part B is the correct answer

3 0

2 years ago

What is the correct first step to solve this system of equations by elimination?

storchak [24]

$\bold{\huge{\pink{\underline{ Solution }}}}$