Equations
What is the value of x in the equation 26=6(5-4x)?
1/6
Inequalities with a greater or less than sign graph how?
open circle on a number line; dashed line on a graph
What type of function is a straight, nonvertical line?
linear
What is the slope of a line with points at (-3,-2) and (-3,2)?
undefined
Would the equations y=3/4x + 7 and 4x-3y=9 be parallel, perpendicular, or neither?
neither
What is the value of x in the equation 2(x-4)=4x-(2x-4)?
What is the solution of 3(x+1)-4x > -5?
x<8
The outputs (answers, y values) are also called what?
y=-2x
Write an equation that is parallel to y=-3/2x + 6 and goes through (2,-1)
y=-3/2x +2
Solve for x in the equation 10x+5y=80
x=8-1/2y
Solve the compound inequality 7-x<1 or 4x<12
c<3 or c>6
A set of x values in a function is referred to as the what?
domain
In slope-intercept form, what equation would pass through (-2,4) and (3,-1)?
y=-x+2
Does the system 1/2x+3y=5 and 10-x=6y have one solution, no solution, or infinitely many?
infinitely many
Solve the proportion: (x+2)/(5)=(2x-11)/7
23
Using interval notation, represent the solution to 7<x+6<=12
(1,6]
What is the value of the function when f(2)=-3x+1?
7
In point-slope form, what equation would pass through (1,4) and (-1,1)?
y-4=3/2(x-1) OR y-1=3/2(x+1)
What is the solution to the system 5x-9y=-43 and 3x+8y=68?
(4,7)
-1, -2
Solve the absolute value inequality for the value of x: -3|x+2|+4 < 13
-5<x<1
What is the value of x in f(x)=200x when the function value is 5?
1/40
In standard form, what equation would pass through (3,-5) and (-6,4)?
x+y=-2
It takes a florist 3 h 15 min to make 3 small centerpieces and 3 large centerpieces. It takes 6 h 20 min to make 4 small centerpieces and 7 large centerpieces. How long does it take to make each centerpiece?
25 min for each small centerpiece; 40 min for each large centerpiece