Find all real zeros of the function y= -3x+9
Mathematics · College · Sun Jan 24 2021
Answered on
Given the function:
y = -3x + 9
Determine all the real zeroes.
Solution:
In order to determine all the real zeros, we simply need to equate y to 0, then solve for x.
y = -3x + 9
-3x + 9 = 0
Transpose -3x on the other side of the equation, hence it must be taken to note that in transposing a number, the sign changes.
3x = 9
divide both sides by 3 in order to cancel out 3x.
3x/3 = 9/3
x = 3
Final answer:
x = 3