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# Algebra2 final

### final study guide

QuestionAnswer
Simplify 7-3(2-5) *squared* -20
simplify 4+6/2*5-10 9
simplify 4+8/2*3-6 10
Evaluate x3-2x2+3x when x=-3 -54
Evaluate xy-2y/5y when x=-2 y=1 -4/5
simplify 3(x-2)-(5x-10) -2x+4
Simplify 5-2[x-3(1-x)] -8x+11
Simplify 2/3x-1/5= 16/6x+1 (rid of denominators) x= -3/5
Solve: 7x-3(x-2)=2(2x-3) -6 or 6
solve: 2x+5=3(x+5)-x no solution
Solve: x-3(x+2)=2x+1 -7/4
solve for k: I=1/2Pt*2k k= 2I/Pt*2
solve: /2x-1/+x=3 4/3 or -2
solve: 7-/3x-2/>4 -1/2
what is the formula for slope y2-y1/x2-x1
L1 and L2 are perpendicular lines. if the slop of L1 is 1/2 then what is the slope of L2 m=-2
what is the slope of a horizontal line m=0
what is the slope of a vertical line undefined
Mr. Smith bought a new car in 2005 for \$35,000. in 2008 his car is worth only \$27,000. What is the rate of change of car value \$2,666 2/3/ year
find the x and y intercepts: 5x+2y=20 (4,0)(0,10)
write and equation in slope intercept form of the line that passes through (4,-5) and has a slope of -3 y=-3x+7
when solving a system of two linear equations by graphing, how many solutions are there if the two lines are parallel? the same none, infinitely, one
solve this system (substitution) x+2y=8 -x+3y=2 (4,2)
solve by elimination: x+3y=-1 2x+5y-4 (17,-6)
how many solutions does this system have: -6+2y=2 12x-4y=-4 infinite
Find the vertex of the graph of the equation: y=x*2-4x+5 (2-1)
Find the vertex of the graph of the equations: y=-2(x-3)*2+2, y=3(x+5)*2, y=-(x+2)*2-1 (3,2), (-5,0), (-2,-1)
Find the vertex of the graph of the equations: y=3(x-2)(x-4), y=-2(x+1)(x-3), y=x(x+6) (3,-3), (1,8), (-3,-9)
Created by: chewil08.14