When the quadratic function f𝑓 is graphed in the xy𝑥𝑦-plane, where y=f(x)𝑦=𝑓(𝑥), its vertex is (5,3).(5,3). One of the x𝑥-intercepts of this graph is (375,0)(375,0). What is the other x𝑥-intercept of this graph?
Question
When the quadratic function f𝑓 is graphed in the xy𝑥𝑦-plane, where y=f(x)𝑦=𝑓(𝑥), its vertex is (5,3).(5,3). One of the x𝑥-intercepts of this graph is (375,0)(375,0). What is the other x𝑥-intercept of this graph?
Solution
The vertex form of a quadratic function is given by f(x) = a(x-h)^2 + k, where (h, k) is the vertex of the parabola. Given that the vertex is (5,3), we can substitute these values into the equation to get f(x) = a(x-5)^2 + 3.
We also know that one of the x-intercepts is (375,0). An x-intercept is a point where the graph crosses the x-axis, so the y-coordinate is 0. We can substitute these values into the equation to find the value of a:
0 = a(375-5)^2 + 3 -3 = a(370)^2 a = -3 / (370)^2
Now that we have the value of a, we can write the complete equation of the function as f(x) = -3/(370)^2 * (x-5)^2 + 3.
The x-intercepts of the graph are the values of x for which f(x) = 0. We already know one of these values is 375. Because the graph of a quadratic function is symmetric about the line x = h, the other x-intercept is the same distance from the vertex as 375, but in the opposite direction.
The distance from the vertex (5,3) to the known x-intercept (375,0) is 375 - 5 = 370. So, the other x-intercept is 5 - 370 = -365. Therefore, the other x-intercept of the graph is (-365, 0).
Similar Questions
When the quadratic function f𝑓 is graphed in the xy𝑥𝑦-plane, where y=f(x)𝑦=𝑓(𝑥), its vertex is (−4, −2)(-4, -2). One of the x𝑥-intercepts of this graph is (−274,0)(-274,0). What is the other x𝑥-intercept of the graph?(−192,0)(-192,0)eliminate(−114,0)(-114,0)eliminate(−94,0)(-94,0)eliminate(−54,0)
What are the vertex and x-intercepts of the graph of the function below?y =(x - 4)(x + 2)A.Vertex: (-4, 2); Intercepts: x = 3, -3B.Vertex: (1, -9); Intercepts: x = 4, -2C.Vertex: (1, 9); Intercepts: x = -4, -2D.Vertex: (1, -5); Intercepts: x = -4, 2SUBMITarrow_backPREVIOUS
Which of the following represents the x-intercepts and the vertex of the quadratic relation y = −x2 − 6x + 27? Question 5AnswerX-intercepts: x = 3, x = -9; Vertex (-3, 36) X-intercepts: x = -3, x = 9; Vertex (3, 36) X-intercepts: x = 3, x = -9; Vertex (-3, -36) X-intercepts: x = -3, x = 9; Vertex (3, -36)
The graph of a function f is given. Use the graph to answer the question.What is the y-intercept?
Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) =
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.