EXPRESSIONS, EQUATIONS, AND FUNCTIONS
f(x) = 4(6x+7) when x=6
(6, 172)
(2x 4 y 3) −1
1/2x 4y3
Identify the slope and y-intercept: 6x+3y=18
What is m=-2;b=6
Equation of the line that passes through the point (-2,9) and has slope -2.
What is y=2x+5
Is there a solution to this system of equations?
y = 2x +12 and y = 2x -12
No
Solve for x: cdx + 12 = y
What is x = (y - 12)/cd
(4xy2z3 )/ 4x
1/(y2z)
X-intercept and Y-intercept: -2x+5y=-20
What is x-intercept=10; y-intercept=-4
Equation of the line that passes through the two given points: (3,9) (1,1).
What is y=4x-3.
Graph: x>4, y<2
What is look at graph.
Solve for x, 2x+10<4x-8
x > 9, or 9 < x
x 2 y −4 ⋅ x 3 y 2
x5/y2
Solve for x: 16x-4=4(2x-3)
What is x=-1.
Equation of the line that passes through the given point and is perpendicular to the given line: (3,-3), y=x+5
What is y=-x.
Does the ordered pair (8,5) satisfy this system of equations: 5x-4y=20, 3y=2x+1
What is No.
Solve and graph solution on a number line
3 l2x - 5l > 15
x > 5 or x < -5
(4m 4 n 3 p 3) /(3m 2 n 2 p 4)
4m2n/3p
Solve for b: b/8=9/4
What is b=18.
Solve: abs(x-2)+6>9
What is x>5 or x<-1.
Graph: x<3, y>1, y>-x (greater than or equal to)
What is look at graph.
Does this relation represent a function?
(2,3) (3,5) (7,9) (0,9) (-2,4)
Yes
((a2b3c0)/(a3b4c3))-4
a4b4c12
What is the slope and y-intercept? 2x+4y = 8
Slope = -1/2, y-intercept = 2
y>4x-3
1. Would this be a dashed or solid line?
2. Would the origin be in the shaded region?
1. Dashed
2. Yes
Write a system of inequalities whose solution set would be entirely in the first quadrant
Answers will vary