Point C's reflection across the x-axis yields coordinates (5, -7). The x-coordinate remains unchanged, while the y-coordinate changes sign, showcasing a fundamental concept in coordinate geometry.
This reflection can be understood as a transformation in which each point on the original figure is flipped over the x-axis to its corresponding point on the reflected figure.
The x-coordinate remains the same because it measures the horizontal distance from the y-axis, which does not change during a reflection across the x-axis. However, the y-coordinate changes sign, as it represents the vertical distance above or below the x-axis.
In summary, to find the coordinates of the reflected point, we change the sign of the y-coordinate of the original point while keeping the x-coordinate unchanged. Thus, the reflected coordinates of point C across the x-axis are (5, -7).
Answer:
x=-4
Step-by-step explanation:
Since we know that the equation will be x= we will just have to take the x value of the coordinate point and that would be the x so in this case the x is -4 so the equation would be x=-4
y = 7x + 4
The y-intercept is 4.
A linear equation is defined as an equation in which the highest power of the variable is always one.
GIven equation,
y = 7x+4
Comparing to the equation of Line y=mx+b,
Whereas the y-intercept is the b.
So, 7 is the slope and 4 is the y-intercept
Hence the y-intercept is 4.
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−48
48
144
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Answer:
144
Step-by-step explanation:
B. 15
C. 22 1/2
D. 30