EXPRESSIONS, EQUATIONS, AND FUNCTIONS
Evaluate 4(6n+7) when n=6
172
Evaluate: 11 - square root of x where x=64
3
Identify the slope and y-intercept: 6x + 3y = 18
What is m=-2; b=6
Write the equation of the line that passes through the point (-2,9) and has slope -2.
y = -2x + 5
Solve: -24 - (7 - 10 + 1)
-22
Write the following as an expression: 3 times the difference of a number m and 15 is equal to 30
3(m - 15) = 30.
Simplify: -7x(x - 13)
-7x2 + 91x
X-intercept and Y-intercept: -2x + 5y = -20
What is x-intercept=10; y-intercept=-4
Write the equation in standard form of the line that passes through the two given points: (3,9) (1,1).
What is -4x + y = -3 OR 4x - y = 3
Graph: x > 4, y < 2
Look at graph.
Is x = 8 a solution for 2x+10 < 4x-7 ?
No 26 < 25 does not work!
-16 - (-25.2)
9.2
Solve for x: 16x - 4 = 4(2x - 3)
x=-1
Write the equation of the line that passes through the given point and is perpendicular to the given line: (3,-3), y = x + 5
y = -x
Simplify: -7x - (-3x) + 3y - 8y
-4x - 5y
You buy apples at $2 per pound and oranges at $3.50 per pound. What is an expression for the total cost of fruit purchased? Also, what is the total cost of 7 pounds of apples and 4 pounds of oranges?
2x + 3.50y ; $28
Solve the proportion: b/8=9/4
b = 18
Solve: absolute value (x-2) + 6 > 9
What is x>5 or x<-1.
Simplify: -2(9 + 2a) - 8(4 - 5a)
36a - 50
A rectangular banner is 16 feet long and has an area of 80 square feet. What is the perimeter of the banner?
42 feet.
True or False: If a number is positive, then its opposite is negative.
True.
Graph: y = -x + 7
Look at graph.
Graph: y = 4x - 3
What is look at graph.
Solve for m: -5 - (-m) = 92
97