PLEASE ANSWER ASAP THXXX the graph shows the solution to which system of equations
A) y=x+2 and y= -x - 4
B) y= -3x +7 and y= x+12
C) y=2x - 3 and y= -2x + 1
D) y= -x + 4 and y = -2x +5

9514 1404 393

  C) y=2x - 3 and y= -2x + 1

Step-by-step explanation:

Sometimes a simple check can find the right answer with almost no work.

The y-intercepts of the lines are +1 (green line) and -3 (red line). The only offered choice with those y-intercepts is choice C.

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The slope-intercept form of the equation of a line is ...

  y = mx + b

where m is the slope, and b is the y-intercept (where the line crosses the y-axis).

All of the answer choices have the equations written in this form. All have different y-intercepts, so the correct pair is not hard to find.

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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step-by-step explanation:

10.4 inches

step-by-step explanation:

2x2x2.6