Select the correct answer. 7 2 2 4 Which of the following inequalities is graphed on the coordinate plane? O A y > 2r + 2 B. Y 2r + 2 Oc. y < 2.r + 2 OD. y < 2x + 2

The inequality that graphed is y ≥ 2x + 2 ⇒ B

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

In the given figure

∵ The equation of the line is y = m x  + b

∵ The line intersects the y-axis at the point (0, 2)

∴ b = 2

→ Use the rule of the slope m = to find m

∵ The line passes through points (-1, 0) and (0, 2)

∴ x1 = -1 and y1 = 0

∴ x2 = 0 and y2 = 2

→ Substitute them in the rule above

∴ m = = = 2

→ Substitute the values of m and b in the equation above

∴ The equation of the line is y = 2x + 2

∵ The line is solid

∵ The shaded area is over the line

∴ The sign of inequality is ≥

∴ The inequality is y ≥ 2x + 2

∴ The inequality that graphed is y ≥ 2x + 2

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

i’m sorry but i don’t know sorry