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scoundrel [369]
3 years ago
10

The equation she came up with is y= x + 6 but her teacher said she was wrong. Find Macy's mistake and and how to fix it.

Mathematics
1 answer:
NARA [144]3 years ago
7 0

Answer:

Step-by-step explanation:

They are looking for it in a different form so x+6=y

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3 years ago
Read 2 more answers
Part 1: What mistake did AJ make in the graph?
grigory [225]

Answer:

Part 1) AJ drawn the parabola opening upwards, instead of drawing it opening downwards

Part 2) see the explanation

Step-by-step explanation:

Part 1) What mistake did AJ make in the graph?

we have

f(x)=-(x+2)^2-1

This is the equation of a vertical parabola written in vertex form

The parabola open downward (because the leading coefficient is negative)

The vertex represent a maximum

The vertex is the point (-2,-1)

therefore

AJ drawn the parabola opening upwards, instead of drawing it opening downwards

Part 2) Evaluate any two x-values (between -5 and 5) into AJ's function. Show your work. How does your work prove that AJ made a mistake in the graph?

take the values x=-4 and x=4

For x=-4

substitute the value of x in the quadratic equation

f(x)=-(-4+2)^2-1\\f(x)=-5

For x=4

substitute the value of x in the quadratic equation

f(x)=-(4+2)^2-1\\f(x)=-37

According to AJ's graph for the value of x=-4 the function should be positive, however it is negative and for the value of x=4 the function should be positive and the function is negative

therefore

AJ made a mistake in the graph

8 0
3 years ago
Keeli was asked to approximate the square root of 38 to the nearest whole number.
Firdavs [7]
We know that 36<38<64
  
so sqrt36 < sqrt 38 < sqrt 64 it is equivalent to 6< sqrt38 < 8

since 38 is closer to 36 than it is to 64, so 6 is <span>approximate the square root of 38 as a whole number</span>
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PLEASE HELP!!!!!!!!!
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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