Can someone please help me?

2 answers:

4 0

Answer: Knowing proportional relationships help in different ways such as in constant change, multiple representations, etc.

Hope this helped.

user100 [1]3 years ago

3 0

Recognize and represent proportional relationships between quantities. Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.

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The screen shot is in the file.... PLEASE HELPPP

jenyasd209 [6]

Answer:

Option A: Madison, (1.2,-1.6) is the correct answer.

Step-by-step explanation:

Observing Madison's solution it can be seen that he has used elimination method to solve the system. If elimination method has to be used the first equation has to be multiplied by 4

$4(2x-y) = 4(4)\\8x-4y = 16$

While Madison has made mistake with sign of one term in equation 1 (he has written -8x instead of 8x)

So <u>Madison's solution is wrong. </u>

Tyler has used the substitution method to solve the system of equations and has done it correctly (Calculated value of y in terms of x from equation 1 and substituted in equation 2)

The value of x=1.2 is correct, we have to find the value of y

So,

Putting the value of x=1.2 we get,

$y=2x-4\\y = 2(1.2)-4\\y = 2.4-4\\y= -1.6$