EXPRESSIONS, EQUATIONS, AND FUNCTIONS
Evaluate: 4(6n+7) when n=6
What is 172.
True or False: If a number is positive, then its opposite is negative.
What is True.
Identify the slope and y-intercept: 6x+3y=18
What is m=-2;b=6
Identify the slope of the line: y=-x+4
What is -1.
Solve the linear system:y=x, y=2x+3
What is x=-3, y=-3 or (-3,-3)
Write: 3 times the difference of a number m and 15 is equal to 30 (as an equation)
What is 3(m-15)=30.
Simplify: -6x-(x+4)
What is -7x-4.
X-intercept and Y-intercept: -2x+5y=-20
What is x-intercept=10; y-intercept=-4
What is 3.
Does (2,1) satisfy the system of equations:
y=2x-3; y=3x-5
What is yes.
Is x=8 a solution for 2x+10<4x-7?
What is no 26<25 does not work!
Simplify: -7x(x-13)
What is 7x^2+91x.
Solve for x: 16x-4=4(2x-3)
What is x=-1.
Equation of the line that passes through the point (-2,9) and has slope -2.
What is y=2x+5
Is the ordered pair a linear system? (8,5), 5x-4y=20, 3y=2x+1
What is No.
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 apples and 4 oranges?
What is 2x+3.50y=c ; 28
-16-(-25.2).
What is 9.2.
Solve proportion: b/8=9/4
What is b=18.
Equation in slope intercept form of the line that passes through the two given points: (3,9) (1,1).
What is y=4x-3.
Solve the system: y=-2x+1; 3x+y=4
What is (3,-5).
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.
An elevator moves at a rate of -5.8 feet per second from a height of 500 feet above ground. It takes 6 seconds for the elevator to make its first stop. How many feet about the ground is the elevator now?
What is 465.2 feet.
Solve for x: 3(x+4)-(x+1)=x+2
What is x=-9.
Equation of the line that passes through the given point and is perpendicular to the given line: y=x+5 and goes through the point (3,-3)
What is y=-x.
Solve the linear system: 2x+9y=16; 5x+3y=1
What is x=-1;y=2 or (-1,2)