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3 years ago

Y = 2x -3 what does y equal

Mathematics

1 answer:

Margarita [4]3 years ago

7 0

Y has already been solved for.

This equation is written in slope-intercept form. (y = mx + b)

In this case m = 2 and b = -3

Slope = 2

Y-intercept = -3

Hope This Helped! Good Luck!

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Step-by-step explanation:

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2 years ago

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3 years ago

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Answer:

first option

Step-by-step explanation:

Given

f(x) = $\frac{2x^2+5x-12}{x+4}$ ← factorise the numerator

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= 2x - 3

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x = - 4

Substitute x = - 4 into the simplified f(x) for y- coordinate

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3 years ago

PLEASE HELP! WILL MARK BRAINLIEST!!

Alecsey [184]

Answer:

The y-intercept is (0,1). The x values at the horiz. intercepts are:

{ (-3+√5)/2, (-3-√5)/2 }. Graph is that of a parabola that opens down.

Step-by-step explanation:

It'd be helpful to rewrite f(x) = 3-x2+3x-2 with the powers of x in descending order and using " ^ " to denote exponentiation:

f(x) = -x^2 + 3x -2 + 3, or

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

y-intercept: let x = 0. Then f(0) = 1. The y-intercept is (0,1)

x-intercepts: let y = f(x) = 0 = -x^2 + 3x + 1. Let's use the quadratic formula with a = -1, b = 3 and c = 1 to determine the roots of this polynomial. The discriminant, b^2-4ac, is 9-4(1)(1), or 5.

Thus, there are two real, unequal roots. They are:

-3 plus or minus √5

x = ---------------------------------

or { (-3+√5)/2, (-3-√5)/2 }

These are your two horizontal intercepts, where the function is zero.

Because the coefficient -1 of the x^2 term is negative, the parabola representing this function opens down.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Y = 2x -3 what does y equal​

Y = 2x -3 what does y equal