Explain how you can use special right triangles to find the missing measurements in right triangles.

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

sorry not knowing about that

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well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.