All categories

2 years ago

What would she have gotten for the equation of the linear function if she had used the ordered pairs (2, 5) and (4, 1) instead?

Mathematics

2 answers:

Alexeev081 [22]2 years ago

4 0

Answer: y = 2x + 9

Step-by-step explanation:

slope(m) = $\frac{y_{2}-y_{1}} {x_{2}-x_{1}}$ = $\frac{1-5} {4-2}$ = $\frac{-4}{2}$ = -2

Point-Slope formula: y - y₁ = m(x - x₁)

y - 5 = -2(x - 2)

y - 5 = -2x + 4

y = 2x + 9

kumpel [21]2 years ago

3 0

Answer:it will be y=-2x+9

Step-by-step explanation:

You might be interested in

Right answer gets brainlyest

lyudmila [28]

Answer:

$\frac{2}{3} (x+6)$

Step-by-step explanation:

$\frac{2}{3} x+4=$ $\frac{2}{3}$ ( $x$ +4÷ $\frac{2}{3}$ )

$\frac{2}{3}x+4$ = $\frac{2}{3}$ ( $x$ +4× $\frac{3}{2}$ )

$\frac{2}{3}x+4$ = $\frac{2}{3}$ ( $x$ + $\frac{12}{2}$ )

$\frac{2}{3}x+4$ = $\frac{2}{3}$ $(x+6)$

3 0

2 years ago

What is the sum of sqrt -2 and sqrt -18

Assoli18 [71]

Answer:

4i sqrt(2)

Step-by-step explanation:

sqrt(-2) + sqrt(-18)

We know sqrt(ab)= sqrt(a) sqrt(b)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(-2)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(2)sqrt(1)

We know the sqrt(-1) is equal to i

i sqrt(2) +3 sqrt(2) i

i sqrt(2) +3i sqrt(2)

4i sqrt(2)

3 0

2 years ago

Una embarcación tenía 120 tripulantes al naufragar parece el 30% los sobrevivientes el 25% son casados¿ Cuántos de los sobrevivi

Wewaii [24]

Answer:

Solteros= 27

Step-by-step explanation:

Entiendo que de los 120 tripulantes, sobrevivió el 30%. Y de los sobrevivientes, 25% son casados.

Primero, debemos calcular la cantidad de sobrevivientes:

Sobrevivientes= 120*0.3= 36

Ahora la cantidad de casados, y por diferencia los solteros:

Casados= 36*0.25= 9

Solteros= 36 - 9

Solteros= 27

7 0

2 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

6 0

3 years ago

Read 3 more answers

Consider the graph of the quadratic function y = 2x2 – 4x + 2.

Ierofanga [76]

Answer:

The function only has one zero.

x = 1 actual coordinate (1, 0) on graph

Step-by-step explanation:

8 0

2 years ago