EXPRESSIONS, EQUATIONS, AND FUNCTIONS
True or False: A negative number times a positive number is always negative.
What is True.
Identify the slope and y-intercept: y=-2x+6
Double points: What is the solution when x = 5?
What is m=-2;b=6
When x=5, y=-4
Equation of the line that passes through the point (0,5) and has slope -2.
What is y=-2x+5
A table is shown below, is it a function? How do you know?
x: 1 2 3 4 5 6
y: -3 2 8 1 0 -4
Yes, no repeating x values
Equation in of the line that passed through the point (3,9) and has a slope of 2.
What is -4x+y=-3.
Graph: y = 2x + 1 and y = -3x - 4
Double points: What is the solution of this system?
What is look at graph and (-1,-1)
x=8 is a solution for 2x+10<4x-7, yes or no?
What is no 26<25 does not work!
Graph: y=-x+7
What is look at graph
Equation of the line that passes through the given point and has the same slope as the given line: (3,-3), y=-x+5
What is y=-x.
What is the solution to the system shown below:
5x-4y=18, 3y=x+3
What is (8,5)
You buy apples at $2 per pound and oranges at $3.50 per pound. What is an expression for the total cost, C, of fruit purchased?
Double points: what is the total cost of 7 apples and 4 oranges?
What is 2x+3.50y= C ; 28
Create a table of x and y values that is NOT a function.
What is look at table.
Solve: 4(x-2)+5=9
What is 3
A system of equations will have no solution only if the two lines are...?
What is parallel or have the same slope.
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.
Simplify: -7x(x-13)-20x
What is 7x2+71x.
Graph: y>4x-3
What is look at graph.