Write the equations using point slope form. Then put into slope intercept form. (3,-4), m=2 and (-5,1), m=4/3

Y= 2x + 10

Y= 4/3 x + 7 2/3

For the first equation with points (3,-4) and m there are three values that we can plug into the equation y=mx + b to find the missing value in this situation, the y-intercept.

First, write the equation with the given values and you should have something like this:

-4 = 2(3) +b

The only value that hasn't been discovered yet is b so we solve the equation appropriately to get our value.

-4 = 6+ b

-10= b

And now that we know that the value of b is -10 we can plug -10 into the equation and get the equation Y= 2x + 10

Now for the second, we complete the same steps. We know that we have the points and the slope and subsequently plug it into the equation and receive our answer( for the y-intercept).

1= -5(4/3) +b

1= - 6 2/3 + b

7 2/3 = b

Once we see that the value of b is 7 2/3 we plug it into the equation and get Y= 4/3x + 7 2/3

Feel free to ask any questions and I am welcome to criticism

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

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