Complete the square to rewrite the function f(x)=3x2–12x+5 in the form f(x)=a(x–h)2+k.
Question
Complete the square to rewrite the function f(x)=3x2–12x+5 in the form f(x)=a(x–h)2+k.
Solution
Sure, here are the steps to complete the square for the function f(x)=3x²–12x+5:
-
First, we need to factor out the coefficient of x² from the first two terms. This gives us f(x) = 3(x² - 4x) + 5.
-
Next, we need to complete the square inside the parentheses. To do this, we take half of the coefficient of x, square it, and add and subtract it inside the parentheses. Half of -4 is -2, and -2² = 4. So, we get f(x) = 3[(x² - 4x + 4) - 4] + 5.
-
Simplify the equation inside the parentheses to get a perfect square trinomial. This gives us f(x) = 3[(x - 2)² - 4] + 5.
-
Distribute the 3 into the parentheses and simplify to get f(x) = 3(x - 2)² - 12 + 5.
-
Finally, simplify the constants to get the function in vertex form: f(x) = 3(x - 2)² - 7.
So, the function f(x)=3x²–12x+5 in the form f(x)=a(x–h)²+k is f(x) = 3(x - 2)² - 7.
Similar Questions
Complete the square to rewrite the function f(x)=3x2–12x+5 in the form f(x)=a(x–h)2+k.f(x)= 3(x - 2)² - 7.Complete the sentence below.The function f(x) has a minimum value of , which occurs when x=.
Complete the square to rewrite the function f(x)=2x2+20x+54 in the form f(x)=a(x–h)2+k.f(x)=Complete the sentence below.The function f(x) has a minimum value of , which occurs when x=.SubmitQuestions
Rewrite each relation in the form y = a(x − h)2 + k by completing the square. Show complete working.a. y = x2 − 8x − 2b. y = x2 − 12x + 8
no the quadratic function needs to be in the form. y=a(x-h)^2+k
Context: determine the equation of a quadratic function with x intercepts of -2 and 4, that passes throught the point E(2,-16). the quadratic function needs to be in the form y=a(x-h)^2+k Answer question
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.