3 years ago

Which graph represents the equation x=-2

Mathematics

2 answers:

Alexxandr [17]3 years ago

6 0

Graph C represents x = -2

romanna [79]3 years ago

4 0

Answer:

Step-by-step explanation:

since there is no y-intercept, no slope, you have to use the x-intercept and plot it using that

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Describe the nature of the roots for this equation.<br> 3x^2+x-5= 0

m_a_m_a [10]

Answer:

<h2>This equation has no natural roots.</h2>

Step-by-step explanation:

$3x^2+x-5=0\\\\\text{Use the quadratic formula for}\ ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{For the given equation:}\\\\a=3,\ b=1,\ c=-5\\\\b^2-4ac=1^2-4(3)(-5)=1+60=61\\\\x=\dfrac{-1\pm\sqrt{61}}{(2)(3)}=\dfrac{-1\pm\sqrt{61}}{6}\notin\mathbb{N}$