Help me find the equation to go with this graph please i give brainlist
1 answer:
Answer:
Step-by-step explanation:
Step 1: The general equation of straight line is
y = mx + c
c = initial value
m = rate of change
Step 2: Initial value c = 20
Step 3: Rate of change
m =
Step 4: From the graph, pick two points
x1 = 0, y1 = 20
x2 = 4, y2 = 2
Step 5: By substitution, rate of change m =
m =
Step 6: Equation of the graph
y = mx + c
y = + 20
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Transformation that changes the size of a shape is referred to as dilation.
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- The center of dilation is: (-1,1)
<u>The center of dilation</u>
From the diagram (see attachment), the triangles share a common vertex at (-1,1)
This means that, the center of dilation is (-1,1)
<u>The scale factor of dilation</u>
To do this, we divide the side length of the small triangle with the corresponding side of the large triangle.
From the attached image:
So, the scale factor (k) from large to small is:
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