Find the surface area of the object

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared