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3 years ago

Find an equation for a line with slope of 3/4 passing through (2, -3)

Mathematics

1 answer:

murzikaleks [220]3 years ago

7 0

Answer:

y=3/4x-9/2

Step-by-step explanation:

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What’s the vertex form of F(x)=x^2+2x-3

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$\large\boxed{f(x)=(x+1)^2-4}$

Step-by-step explanation:

$\text{The vertex form of a quadratic equation}\ f(x)=ax^2+bx+c:\\\\f(x)=a(x-h)^2+k\\\\(h,\ k)-\text{vertex}\\=====================================$

$\bold{METHOD\ 1:}\\\\\text{convert to the perfect square}\ (a+b)^2=a^2+2ab+b^2\qquad(*)\\\\f(x)=x^2+2x-3=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-3\\\\f(x)=(x+1)^2-4\\==============================$

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3 years ago

If you multiply a number by 3 and then subtract 5, you will get 40 what is the number

Paul [167]

Answer:

Number = 15.

Step-by-step explanation:

Given : If you multiply a number by 3 and then subtract 5, you will get 40.

To find : what is the number.

Solution : We have given if you multiply a number by 3 and then subtract 5, you will get 40.

According to question :

Let the number = x

Multiply is with 3 = 3x

Subtract 5 from it we get 40 .

3x -5 = 40

On adding both sides by 5

3x = 45 .

On dividing both sides by 3

x = 15.

Therefore, Number = 15.

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