EXPRESSIONS & EQUATIONS
FUNCTIONS
LINEAR EQUATIONS
WRITING, SOLVING AND GRAPHING LINEAR EQUATIONS
Inequalities
100
4(6n+7) when n=6
What is 172.
100
If f(x) = 3x +1, find f(2)
f(2) = 7
100
Identify the slope and y-intercept:
6x+3y=18
What is m=-2;b=6
100
Equation of the line in POINT-SLOPE form that passes through the point (-2,9) and has slope -2.
What is y - 9 = -2 ( x + 2 )
100
2x + 5 > 3
w > -2
200
Write an equation for:
3 times the difference of a number m
and 15 is equal to 30
What is 3(m-15)=30.
200
If f(x) = 3x - 5, find x when f(x) = 10
x = 5 when f(x) = 10
200
find the x and y intercepts of:
-2x+5y=-20
WRITTEN AS POINTS
(10,0) and (0,-4)
200
Equation of the line in SLOPE-INTERCEPT form that passes through the two given points: (3,9) (1,1).
What is y=4x-3.
200
-2x + 4 > 2
x < -1
300
x=8 a solution for 2x+10<4x-7
What is no 26<25 does not work!
300
Determine if the following is a function:
(-2, 3), (0, 1), (-2, 5), (4, 9)
No
300
Solve for x: 16x-4=4(2x-3)
What is x=-1.
300
Write an equation in SLOPE-INTERCEPT form of a line with a slope of 3 passing through (2,5).
y = 3x - 1
300
5(x + 8) - 7 > 23
x > -2
400
You buy apples at $2 per pound and bananas at $3.50 per pound. What is an expression for the total cost of fruit purchased?
C = 2a + 3.50b
400
Is this a function?
No
400
Solve: b/8=9/4
What is b=18.
400
Write an equation in STANDARD form of a line passing through (2,5) & (4,11).
3x - y = 1
400
-24 < 2x - 10 < -6
-7 < x < 2
500
A rectangular banner is 16 feet long and has an area of 80 square feet. What is the perimeter of the banner?
What is 42 feet.
500
True or False: The domain of a function is the set of outputs
What is false.
500
solve for y:
(5/3)y + 4 = (10/6)y + 8
What is y = 3
500
Write the equation of a line passing through (2,2) & (2,5)
x=2
500
x - 2 < 5 OR 2x + 5 > 23
x < 7 OR x > 9