Answer:
The axis of symmetry is x = 6
Step-by-step explanation:
To find this, first find the two x-intercept values and then take the average. This will always be the line of symmetry.
x + 9 = 0
x = -9
x - 21 = 0
x = 21
Now take the average of these two numbers.
(-9 + 21)/2
12/2
6
Answer:
D
6 divided by 1/4 = 24
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
The slope is the variation of the inclination of a straight line.
It's measured by calculating the variation of the y values (rise) over the variation of the x values (run). Let's take 2 points over that line: (0,-3) and (2,-3).
We see the variation of y values is 0: -3 - -3 = 0
The variation of x values is 2: 2 - 0 = 2
So, the slope is 0/2, so 0.
Horizontal lines don't have a slope because they don't vary in the y values... just like a flat land isn't a hill, there's no slope.
Answer:
Undefined
Step-by-step explanation:
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