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3 years ago

Identify the graphed linear equation.

Mathematics

2 answers:

erastova [34]3 years ago

6 0

D
It is because the slope is negative and the y intercept is -2

alisha [4.7K]3 years ago

6 0

The y-intercept is -2, which gives you the b of the slope-intercept form (y=mx + b). This would rule out choices A and C. It rises 5 and goes to the left 1 in the negative direction. This gives you the m part (rise/run). This would give you the answer of:

D) y = -5x - 2

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What is the vertex form of y=-2x2+4x + 3?

sukhopar [10]

Answer:

$y=-2(x-1)^2+5$

Step-by-step explanation:

we have

$y=-2x^2+4x+3$

This is the equation of a vertical parabola open downward

The vertex represent a maximum

Convert the quadratic equation into vertex form

step 1

Factor -2

$y=-2(x^2-2x)+3$

step 2

Complete the square

$y=-2(x^2-2x+1)+3+2$

$y=-2(x^2-2x+1)+5$

step 3

Rewrite as perfect squares

$y=-2(x-1)^2+5$ ----> equation in vertex form

The vertex is the point (1,5)

3 0

3 years ago

Segment AB has point A located at (6, 5). If the distance from A to B is 5 units, which of the following could be used to calcul

sesenic [268]

The expression $5 = \sqrt{(x-6^2)+(y - 5)^2}$ can be used to find the coordinate of Point B. Option C is correct.

Given that,
Segment AB has point A located at (6, 5). If the distance from A to B is 5 units, which of the following could be used to calculate the coordinates for point B is to be determined.

<h3>What is the equation?</h3>

The equation is the relationship between variables and represented as y = ax +c is an example of a polynomial equation.

Let the coordinates of B be (x, y)
Now the distance between A (6, 5) and B (x, y) is c = 5 units
So, by the distance formula, the distance between two points is given as,

$C = \sqrt{(x_1-x_2)^2 +(y_1-y_2)^2}$

now put the value in the formula.

$5 = \sqrt{(x-6^2)+(y - 5)^2}$

Thus, expression $5 = \sqrt{(x-6^2)+(y - 5)^2}$ can be used to find the coordinate of Point B. Option C is correct.

Learn more about equation here:

brainly.com/question/10413253

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4 0

1 year ago

URGENT. Find f(3) if<br> f(x)=x^3 + 2x^2-x-1

KonstantinChe [14]

Answer:

Step-by-step explanation:

Jus replace x with 3 and put it in a calculator.

6 0

3 years ago

Read 2 more answers

I NEED HELPPPP PLEASEEEEW BEGGINGGG YOUUUU PLEASEEEEEE PLEASEEEEEEE

avanturin [10]

Answer:

7x + 7

Step-by-step explanation:

2x + 5x = 7x

5 +2 = 7

4 0

3 years ago

Read 2 more answers

(b-c)3 +(c-d) raise to3 3+(d-b)3

Juliette [100K]

Answer:3 b − 2 c− d , t o 3 , 3 + 3d − 3 b

Step-by-step explanation:

( b − c ) ⋅ 3 + ( c -d ) raise t o 3 3 + ( d − b ) ⋅ 3

Write the problem as a mathematical expression.

( b − c ) ⋅ 3 +( c − d ) raise t o3 3+ ( d − b) ⋅ 3

Remove parentheses.

( b − c) ⋅ 3 + c − d , t o 3 , 3 + ( d − b ) ⋅ 3

Simplify each term.

Apply the distributive property.

b ⋅ 3 − c ⋅ 3 + c− d

Move 3 to the left of b . 3 ⋅ b − c ⋅ 3 + c − d

Multiply 3 by − 1 ⋅ 3 b − 3 c + c − d

Add − 3 c and c. 3 b − 2 c − d , t o 3 , 3 + ( d − b ) ⋅ 3

Simplify each term.

Apply the distributive property.

3 + d ⋅ 3 − b ⋅ 3

Move 3 to the left of d . 3 + 3 ⋅ d − b ⋅ 3

Multiply 3 by − 1 . 3 + 3 d − 3 b

4 0

2 years ago