Welcome to the forum. If you mean the second line, the one parallel to 3x-4y+1=0 then the points are (8 , 2) and (0, -4).

The equation of the parallel line is

the equation of the circle with center at (4 , -1) is

Solve them both simultaneously:

]]>Yes, the copy and paste still had the earlier one in there I am sorry. Check 3) now .

]]>Let's start with 2), which part are you unsure about?

]]>1) The equation of the line is -8x + 5y = -30 so can you get m and b from that?

2) The equation of the line is 2x - 7y = -3, can you get A - B from that?

3) The equation of the perpendicular bisector is -3x + 5y = 41, can you get m and b now?

]]>1)Let line

be the graph of . Line is perpendicular to line and passes through the point (10,10). If line is the graph of the equation y =mx + b, then find m+b.2) Find B-A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3

3)The "perpendicular bisector" of the line segment

is the line that passes through the midpoint of and is perpendicular to .The equation of the perpendicular bisector of the line segment joining the points (1,2) and (-5,12) is y=mx+b. Find m + b.

]]>I think we need more conditions to get an upper bound on the amount your truck can carry.

]]>I am probably not understanding the question but this is what I am getting.

There is no largest amount you can be assured of carrying. The smallest amount is that your truck can carry 3200 lbs while each of her trucks can carry 2400 lbs.

]]>Use [ or ] when the end point is included. Use ( or ) when the end point is not included.

eg.

2 < x < 3 ............................ (2,3)

2 ≤ x < 3 .............................. [2,3)

You cannot reach ∞ so that end point will never be included.

x > 5 ................................ (5,∞)

Bob

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