The blue line is the graph of y – 1 = x. Use the sliders to make the orange line represent 2x + y = –5. Examine the graph. What is the solution of the system of these two equations? Hint: Convert to slope-intercept form before using the sliders.

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Write the expression 7x^3-28xy^2 as the product of 3 factors

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way