1. **Problem Statement:** We are given the quadratic function $$f(x) = x^2 - 14x + 48$$ and need to describe its graph by identifying key features such as intercepts, direction of opening, and axis of symmetry.
2. **Formula and Rules:**
- The quadratic function is in the form $$ax^2 + bx + c$$ where $$a=1$$, $$b=-14$$, and $$c=48$$.
- The parabola opens upward if $$a > 0$$ and downward if $$a < 0$$.
- The axis of symmetry is given by $$x = -\frac{b}{2a}$$.
- The y-intercept is the value of $$f(0) = c$$.
- The x-intercepts (roots) are found by solving $$f(x) = 0$$.
3. **Find the y-intercept:**
- Substitute $$x=0$$ into the function:
$$f(0) = 0^2 - 14 \times 0 + 48 = 48$$
- So, the y-intercept is at $$(0,48)$$.
4. **Determine the direction of the parabola:**
- Since $$a=1 > 0$$, the parabola opens **upward**.
5. **Find the x-intercepts:**
- Solve $$x^2 - 14x + 48 = 0$$.
- Factor the quadratic:
$$x^2 - 14x + 48 = (x - 6)(x - 8) = 0$$
- So, $$x = 6$$ or $$x = 8$$.
- The x-intercepts are $$(6,0)$$ and $$(8,0)$$.
6. **Find the axis of symmetry:**
- Use the formula:
$$x = -\frac{b}{2a} = -\frac{-14}{2 \times 1} = \frac{14}{2} = 7$$
- The axis of symmetry is $$x = 7$$.
**Summary:**
- The y-intercept is $$(0,48)$$.
- The parabola opens **upward**.
- The x-intercepts are $$(6,0)$$ and $$(8,0)$$.
- The axis of symmetry is $$x = 7$$.
**Note:** The statement "The parabola opens downward" and "The axis of symmetry is x=6" are incorrect based on the calculations.
**Final answer:**
- The y-intercept is $$(0,48)$$.
- The parabola opens upward.
- The x-intercepts are $$(6,0)$$ and $$(8,0)$$.
- The axis of symmetry is $$x=7$$.
Quadratic Graph 918Ffa
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