Use the points slope formula to write an equation of the line that passes through (3,-9) and has a slope of m=-4.write the answer in slope intercept form (if possible)

y=-4x+3

This is the slope-intercept form where m=-4 and b=3

Step-by-step explanation:

Equations of the line

There are several forms to express the equation of a line in the plane.

The point-slope form is:

y-k=m(x-h)

Where (h,k) are the coordinates of the point and m is the slope.

The slope-intercept form is:

y=mx+b

Here, b is the value of the y-intercept.

The given line passes through (3,-9) and has a slope of m=-4. The point-slope form is:

y-(-9)=-4(x-3)

Operating:

y+9=-4x+12

Subtracting 9:

y=-4x+3

This is the slope-intercept form where m=-4 and b=3

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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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step-by-step explanation: