vertex : (-4, -3)
x-intercept(s): (2,0), (-10,0)
y-intercept : (0, -1)
Step-by-step explanation
Given:
The vertex (h, k) is (-4, -3).
To graph, we need to first find the x and y-intercept.
To find the x-intercept, put f(x) =0 and solve for x
That is;
Add 3 to both-side of the equation
Multiply both-side by 2
x+4 = 6 or x + 4 =-6
x= 6 - 4 x = -6 - 4
x=2 x = -10
Hence, the x-intercepts are (2,0) and (-10, 0)
To calculate the y-intercept, put x=0
That is;
Hence, the y-intercept is (0, -1)