Solve for A and B: Analyzing the Quadratic Graph of f(x) = x² - 6x

Question

The following function has been graphed below:

f(x)=x26x f(x)=x^2-6x

Calculate points A and B.

AAABBB

Video Solution

Solution Steps

00:00 Find the coordinates of points A,B
00:03 Notice that points A,B are the intersection points with the X-axis
00:07 At the intersection points with X-axis, Y value must = 0
00:14 Substitute Y = 0 and solve for X values
00:19 Factor out the common term from the parentheses
00:22 Find what makes each factor equal zero
00:25 This is one solution
00:29 This is second solution
00:32 And this is the solution to the question

Step-by-Step Solution

To solve for the points A and B, where the graph of f(x)=x26x f(x) = x^2 - 6x intersects the x-axis, let's solve the equation f(x)=0 f(x) = 0 :
1. Write the equation in standard form:
x26x=0 x^2 - 6x = 0 .

2. Factor the quadratic equation:
x(x6)=0 x(x - 6) = 0 .

3. Set each factor equal to zero:
x=0 x = 0 or x6=0 x - 6 = 0 .

4. Solve each equation for x x :
x=0 x = 0 and x=6 x = 6 .

Thus, the points where the function intersects the x-axis, also the points A and B, are (0,0) (0,0) and (6,0) (6,0) .

Therefore, the solution to the problem is (6,0),(0,0) (6,0), (0,0) .

Answer

(6,0),(0,0) (6,0),\lparen0,0)