Write the equation of a line, in slope intercept form, that has a slope of -3 and passes through the point (4, 2).

The slope-intercept form:

m - slope

b - y-intercept

We have the slope

and point (4, 2). Substitute:

     add 12 to both sides

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204