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Pie
3 years ago
8

What is the pre-image vertex A’ if the rule that created the image is r y-axis (X,Y) (-x,y)

Mathematics
1 answer:
Lapatulllka [165]3 years ago
4 0

Answer:

its A=(-4,2)

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope (also called the gradient) and b is the y-intercept (the value of y when x is 0)

<u>1) Plug the gradient into the equation (b)</u>

y=mx+b

We're given that the gradient of the line is 4. Plug this into y=mx+b as m:

y=4x+b

<u>2) Determine the y-intercept (b)</u>

y=4x+b

Plug in the given point (1,10) as (x,y) and solve for b

10=4(1)+b\\10=4+b

Subtract 4 from both sides to isolate b

10-4=4+b-4\\6=b

Therefore, the y-intercept of the line is 6. Plug this back into y=4x+b as b:

y=4x+6

I hope this helps!

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2 years ago
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Step-by-step explanation:

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