QUESTION IMAGE
Question
use the drawing tool(s) to form the correct answer on the provided graph.plot the x - intercept(s), y - intercept, vertex, and axis of symmetry of the function\\(h(x)=(x - 1)^2 - 9\\).
Step1: Identify vertex form
The function is in vertex form $h(x) = a(x-h)^2 + k$, where $(h,k)$ is the vertex.
For $h(x)=(x-1)^2 - 9$, $h=1$, $k=-9$.
Step2: Find vertex
Vertex is $(h,k)$.
Vertex: $(1, -9)$
Step3: Find axis of symmetry
Axis of symmetry is $x=h$.
Axis of symmetry: $x=1$
Step4: Find y-intercept (x=0)
Substitute $x=0$ into $h(x)$.
$h(0)=(0-1)^2 - 9 = 1 - 9 = -8$
Y-intercept: $(0, -8)$
Step5: Find x-intercepts (h(x)=0)
Set $(x-1)^2 - 9 = 0$.
$(x-1)^2 = 9$
$x-1 = \pm 3$
$x=1+3=4$ or $x=1-3=-2$
X-intercepts: $(-2, 0)$ and $(4, 0)$
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- Vertex: $(1, -9)$
- Axis of symmetry: $x=1$
- Y-intercept: $(0, -8)$
- X-intercepts: $(-2, 0)$ and $(4, 0)$
To plot:
- Mark the vertex $(1, -9)$
- Draw the vertical line $x=1$ (axis of symmetry)
- Mark the y-intercept $(0, -8)$
- Mark the x-intercepts $(-2, 0)$ and $(4, 0)$
- Sketch the parabola passing through these points, opening upwards.