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saul85 [17]
3 years ago
14

3) The graph of the equation y = x2 + 1 is shown. Which equation will shift the graph up 7 units? A) y = x2 + 7 B) y = x2 - 8 C)

y = x2 + 8 D) y = (x+7)2
Mathematics
2 answers:
Elina [12.6K]3 years ago
6 0
Your answer is C. (1+7=8)
Anna71 [15]3 years ago
3 0

Answer:

C) y=x^2+8

Step-by-step explanation:

the function

y=x^2+1

Is a parabola that crosses the y-axis at +1.

So in a function of the form:  y=x^2+a, the number a indicates the point at which the graph of the function crosses the y-axis.

So, to find a function that is 7 units above, we need to add 7 to the number a.

In this case a = + 1

so adding 7:

+ 1 + 7 = + 8

So the resulting function, which is 7 units above is:

y=x^2+8

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