2 answers:
y = 2x^2 - 4
Add both side 4
y + 4 = 2x^2 - 4 + 4
y + 4 = 2x^2
Divide both sides by 2
( y + 4 ) ÷ 2 = 2x^2 ÷ 2
y + 4 / 2 = x^2
x^2 = y + 4 / 2
x = + √(y+4/2) Or x = - √(y+4/2)
Thus the <em><u>second option</u></em> is the correct answer.
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Answer:
3x + 4y - 20 = 0
Step-by-step explanation:
see the explanation in the image.
20/30 = 2/3
35/28 = 1 1/4 or 5/4
Domain are the values of x, range are the values of y