Realiza los siguientes ejercicios. 2
1. Utiliza los signos > <, 5 para comparar las siguientes cantidades:
a)
08
b)
(5+2)
7
c)
20
4
3
d)
e) (20-23) 0 (-2-1)
2. Evalúa la función f(x)=x+3, de acuerdo al valor indicado.
a) S(2)
b) f(-1)
c) f(0)
3. Grafica las siguientes funciones en el intervalo indicado:
a) f(x)=x+3 Intervalo (-4,4)
b) f(x)= x° +5 Intervalo (- 4,4]​

17

step-by-step explanation:

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step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form