3 years ago

By substituting the given values for x calculate the y value for the following equation y=x+2

Mathematics

1 answer:

yawa3891 [41]3 years ago

6 0

Answer:

what are the given values for x?

Step-by-step explanation:

i don't know what the given values for x are

but if you know them, here's an example

let's say x=4

y=(4)+2

y=6

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Without using a calculator, determine the number of real zeros of the function

kumpel [21]

The number of real zeros of the function f(x) = x3 + 4x2 + x − 6 is 3

<h3>How to determine the number of real zeros?</h3>

The equation of the function is given as:

$f(x) = x^3 + 4x^2 + x - 6$

Expand the function

$f(x) = x^3 + 5x^2 - x^2 + 6x - 5x - 6$

Reorder the terms

$f(x) = x^3 + 5x^2 + 6x - x^2 - 5x - 6$

Factor the expression

$f(x) = x(x^2 + 5x + 6) -1(x^2 + 5x + 6)$

Factor out x -1

$f(x) = (x^2 + 5x + 6)(x -1)$

Expand

$f(x) = (x^2 + 3x + 2x + 6)(x -1)$

Factorize

$f(x) = [x(x + 3) + 2(x + 3)](x - 1)$

Factor out x + 2

$f(x) = (x + 3)(x + 2)(x- 1)$

The function has been completely factored and it has 3 linear factors

Hence, the number of real zeros of the function f(x) = x3 + 4x2 + x − 6 is 3

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Can someone solve this

dimaraw [331]

Answer:

y= -1/4x + (-1)

Step-by-step explanation:

(4,-2) (0,-1)

m= y2-y1/x2-x1

m=-2-(-1)/4-0

m= -1/4

y= mx + b

-2= -1/4(4)+ b

-2= -1 +b

+1 +1

-1= b

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