EXPRESSIONS, EQUATIONS, AND FUNCTIONS
Square root of 64
8
Identify the slope and y-intercept: y=-2x + 6
m=-2;b=6
Equation of the line that passes through the point (-2,9) and has slope -2.
y=-2x+5
Solve the system: 5x + y=4, 6x - y=7
(1,-1)
3 times the difference of a number m and 15 is equal to 30 (as an expression)
3(m-15)=30
Simplify: -7x(x-13)
-7x2+91x
What is the Y-intercept: -2x+5y=-20
y-intercept=-4
What is the slope of the two given points: (3,9) (1,1).
m=4
Graph on a number line : x>4, x<2
Ms. Ruiz will look at graph
x=8 a solution for 2x+10<4x-7
No, 26<25
-16-(-25.2)
9.2
Solve for x: 16x-4=4(2x-3)
x=-1.
Equation of the line that passes through the given point and is perpendicular to the given line: y=2/3x+5
y = -3/2x - 8
Is the ordered pair a linear system? (8,5), 5x-4y=20, 3y=2x+1
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?
C=2x+3.50y
Simplify
8x3y3(10x5)
80x8y3
Solve for a: G(a+h)= M
a= M/G - h
Graph: -2 < X on a number line
Ms. Ruiz will check the board
Solve the system: y=6x ; y= 3x+21
(7,42)
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
On your board draw the graph of y = -x + 7
Ms. Ruiz will check board
Graph: y>2x -3
Ms. Ruiz will look at graph
Solve the linear system: 2x+9y=16, 5x=1-3y
(-1,2)