7. Write the equation of a line in the form y = mx + b that passes through the point (3,6) and PLEASE HELP

8. In 2009, U. S. families, on average, spent $541.25 on back-to-school supplies. In 2016,
the figure rose to $681.25.

a. Find a linear model in the form, y = mx + b, that fits this data using x=0 to stand for
the year 2000.

b. Use your model or perhaps another algebraic idea to predict the back-to-school cost in
the year 2025

4

step-by-step explanation:

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

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

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: