Problemas
Which of the following points is a solution to the system of inequalities ygeqslant (1)/(5)x-4 and ygt -x-3 (0,-5) (-5,0) (0,0) (5,0)
Roztwór
Rafael
maestro · Tutor durante 5 años
4
(243 Votos)
Respuesta
To determine which of the given points is a solution to the system of inequalities
and
, we need to substitute into the inequalities and check if they satisfy both inequalities.Let's start with the first point
:Substituting
into the first inequality
, we get:
This is not true, so
is not a solution.Now let's substitute
into the second inequality
:
This is also not true, so
is not a solution.Next, let's substitute
into the inequalities:Substituting
into the first inequality
, we get:
This is true, so
satisfies the first inequality.Now let's substitute
into the second inequality
:
This is not true, so
does not satisfy the second inequality.Moving on to the point
:Substituting
into the first inequality
, we get:
This is true, so
satisfies the first inequality.Now let's substitute
into the second inequality
:
(0,0)
(5,0)
(5,0)
y\geqslant \frac {1}{5}x-4
0\geqslant \frac {1}{5}(5)-4
0\geqslant 1-4
0\geqslant -3
(5,0)
(5,0)
y\gt-3
0\gt -(5)-3
0\gt -8
(5,0)
(5,0)
y\geqslant \frac {1}{5}x-4
y\gt -x-3$.