Hello :
<span>equations represent functions :
</span><span>B. y = 3x
C. y = x2 - 3
D. y = 10x3</span>
Answer:

Step-by-step explanation:
y - 10 = 3(x + 5)
y - 10 = 3x + 15
+ 10 + 10
__________
y = 3x + 25
- 3x - 3x
________

I am joyous to assist you anytime.
Answer: Acute
Step-by-step explanation:
It is acute because all the angle would make less than 90 degrees
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Got your answer.
I drew it out on a digital drawing software I have.