EXPRESSIONS, EQUATIONS, AND FUNCTIONS
The square root of x, where x=64 subtracted from 11.
What is 3.
True or False, the line y=2x+5, passes through the point (7,20)
What is false.
Identify the X-intercept and Y-intercept: -2x+5y=-20
What is x-intercept=10; y-intercept=-4
Find the slope of the line that passes through the two given points: (1,1) and (3,9)
What is a slope of 4.
Solve the linear system.
3x+2y=19
2x+4y=24
What is x = 3.5 and y = 4.25
Is x=8 a solution for 2x+10<4x-7
What is no 26<25 does not work!
Simplify and put in standard form: 2x(4-5x)+9
What is -10x^2+8x+9
Solve for x: 16x-4=4(2x-3)
What is x=-1.
True or False: The y intercept of the line 2y +3x = 8 is 4.
What is True
State the coordinate of the vertex of f(x) = 2x^2 -16x +33
What is (4,1)
You buy apples, x, at $2 per pound and oranges, y, at $3.50 per pound. What is an expression for the total cost, C of fruit purchased? Also, what is the total cost of 7 apples and 4 oranges?
What is C= 2x+3.50y; $28
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 b: b/8=9/4
What is b=18.
Solve: 5(2x+6) = -4(-5-2x) +3x
What is x = 10
Determine if the vertex is a maximum or minimum given the equation y = -2x^2 -17x +11
What is a maximum.
A rectangular banner is 16 feet long and has an area of 80 square feet. What is the width of the banner?
What is 5 feet.
True or False: The product of two rational numbers is always rational.
What is True.
Solve for x: 5x-6=3x-8
What is x = -1
True or False: x=8 is a solution to
3x+5 > 4x-3
What is false. 29>29 is untrue.