math final
2a+6-6a ~ simplify each expression
-4a+6
what are the vertices of the feasible region bounded by the constraits: y≥0, x≥0, y≤-2x+4
(0,4), (0,0), (2,0)
solve the quadratic equation: x²+x-30=0
(5,-6)
y+2/8=0 ~solve each equation
-2
through (2,6) and (1,3) find the slope
-3
through (-1,0) and parallel to y=-4x+2
-4
3x²-75=0 ~solve each equation
-5,5
4w+3= 2w+5 ~solve each equation
1
find the discriminant of the equation 2x²-3x+1=0. Use the discrimenant to determine the number of real solutions and the number of imaginary solutions of this equation
2 real, 0 imaginary
a vet had 140 routine cat/ dog appointments for the week. the cost of a routine cat appointment is $20 and the dog appointment $25. the vet earned $3225 for these visits. solve a system of equations to determine the number of cat appointments and the number of dog appointments for the vets week.
55, 85
2x-8<4 ~solve each inequality and graph
answer
5x< 15 or 10x>80 solve the compound inequality and graph the solution
answer
find the real solution of x²-2x=7 using a graphing utility. Round each solution to the nearest hundredth
answer
a parabola contains the points (0,5)(3,7)(-2,-3). what is the equation of this parabola in standard form?
quadratic regression
solve each system: y=x, y+4x=10
x=2
write the standard form of the equation of the parabola that is a translation pf y=x² three units to the right and four units down
y=(x-3)²-4
write y= 2x² +24x+68 in vertex form
y=2(x+6)² -4
solve each system: x+y-3z=-7, 3x-4z=0, 2z=6
4,-2,3
graph the function: y=|x-3|
answer
graph the inequalities of the system of inequalities: y≤x+3, x+y≤3
answer
write y=9x²=54x+77 in vertex form. Identify the vertex and the axis of symmetry
answer
y varies directly with x. find the constant of variation if y=14 when x=2
answer
|x+2|≥7 ~solve each inequality and graph
answer
find the domain and range of the relation (2,-4), (3,0), (5,2)
domain: 2,3,5; range: -4,0,2