How do you write f(x)=x^2-7x + 9 in vertex form? Algebra Quadratic Equations and Functions Vertex Form of a Quadratic Equation 1 Answer 冠廷 李. Jul 2, 2016 (x-7/2)^2-13/4 Explanation: (x^2-7x+49/4)+9-49/4 (x-7/2)^2-13/4 Answer link Related questions What is the Vertex Form of a Quadratic Equation? How do you find the vertex form of a quadratic equation? How do you graph quadratic equations written in vertex form? How do you write y+1=-2x^2-x in the vertex form? How do you write the quadratic equation given a=-2 and the vertex (-5, 0)? What is the quadratic equation containing (5, 2) and vertex (1, –2)? How do you find the vertex, x-intercept, y-intercept, and graph the equation y=-4x^2+20x-24? How do you write y=9x^2+3x-10 in vertex form? What is the vertex of y=-1/2(x-4)^2-7? What is the vertex form of y=x^2-6x+6? See all questions in Vertex Form of a Quadratic Equation Impact of this question 3358 views around the world You can reuse this answer Creative Commons License