Midterm 1: Version B
- Evaluate: −b−√b2−4ac if a=5, b=6, and c=1.
- Solve for x in the equation 3(5x−6)=4[−3(2−x)].
- Isolate the variable b in the equation A=hB⋅b.
- Solve for x in the equation x+35−x2=5−3x10.
- Find the equation of the horizontal line that passes through the point (−3,4).
- Find the equation that has a slope of 13 and passes through the point (−1,4).
- Find the equation of the line passing through the points (0,4) and (−3,5).
- Graph the relation y=13x−2.
For questions 9 to 11, find each solution set and graph it.
- 6x−4(3−2x)>5(3−4x)+7
- −3≤2x+3<9
- |3x+25|<2
- Graph the relation 5x+2y<10.
- Find two consecutive even integers such that their sum is 16 less than five times the first integer.
- Karl is going to cut a 40 cm cable into 2 pieces. If the first piece is to be 4 times as long as the second piece, find the length of each piece.
- P varies directly as T and inversely as V. If P=100 when T=200 and V=500, find the constant k, then use this to find P when T=100 and V=500.