Answer:h=−5t2−10t+70
Step-by-step explanation:
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Undefined as the line is parallel to y axis ie; x=3
Answer: 
Step-by-step explanation:
Given
Function is 



from (i) and (ii) we get

Answer:
graph these
y = 2x + 2
y = 2x - 3
Step-by-step explanation:
2x - y = -2
2x - y = 3
convert to y intercept form
first
2x - y = -2
-y = -2x - 2
y = 2x + 2
second
2x - y = 3
-y = -2x + 3
y = 2x - 3
you are left with
y = 2x + 2
y = 2x - 3
i cannot graph these for you, but i assume you know how, there is no solution because the lines are parallel