Part A

Suppose that you want to construct a line with slopem=3 that passes through the point (2,1). You would beginby setting up the equation

y=3x+b.

If you plug in the coordinates for any point on that line, thetwo sides of the equation will be equal. Once you've done this, youcan solve for b. What is the value of b?

Express your answer as an integer.

Part B

Suppose that you want to find the equation for a line thatpasses through the two points (0,3) and (4,9). What is the slope ofthis line?

Express your answer numerically.

Part C

Now that you have the slope, proceed as you did in Part A. Whatis the value of b for this line?

Express your answer numerically.

Part D

Now, find the equation for a line that passes through the twopoints (?1,3) and (4,?5).

Express your answer in terms of x. The "y="has been given for you.

Part E

What is the y coordinate of the point on the line withx coordinate ?2?

Express your answer numerically

Answer rating: 100% (QA)

Sol A The equation for the line is y mx b 1 Here m is the slope and b is the intercept substitue m 3 ... View the full answer