Solving linear equations
The equation below is the standard form of a linear equation.
ax+by=c
Solve for y
What is y=(−a/b)x+ (c/b)?
2x−6(x−3)≥5
What is x is less than or equal to 13/4?
Evaluate a function f (x) =3x - 7 for x=3.
what is f(x)=-16 ?
The solution to the system -4x + 9y = 9
x = 3y - 6
What is (9,5)?
5|x+3|−10=0
Remember there are two answers
What is x= -5 and - 1?
Solve 3x-8≤22
Is it an open or closed circle?
Give me a number that can make the inequality true
what is x= 30
what is closed circle ?
what is any number less than or equal to 30?
*30 - negative infinity
For f(x) =24-2x, find (2) and find x such that f(x) =10.
what is 20; 7?
Phil bought 6 new compact disks and 2 used compact disks for $127.92. At the same prices, Mackenzie bought 3 new compact disks and 8 used compact disks for $133.89. Find the cost of buying a single used compact disk.
What is $9.99 ?
The perimeter of a rectangle is given by the formula P=2(l+w)P=2(l+w) . Which formula gives w in terms of P and l?
W= ?
What is w= (p/2)-l ?
The width of a rectangular flower shop is 20 feet less than twice the length. The perimeter is more than 70 feet. Which inequality can be used to find a possible length, x, of the shop in feet?
remember perimeter = 2W+2L
What is 2x+2(2x−20)>70?
given f(x) = 3-x with domain D: {-2,-1,0,1,2}. what is the range, R?
what is R:{5,4,0,2,1}?
A taxi ride in a large city costs $3.50 plus $6 for each mile traveled. Write an equation to represent this situation where d is the distance traveled.
If Brandon traveled 7.5 miles by taxi, how much was the cost, C, of his taxi ride?
Which equation represents this situation and the cost of Brandon's taxi ride?
What is C=3.5+6d? . What is Brandon's taxi ride costs $48.50?
A truck driver plans to drive 1,000 miles in two days to reach his destination. He hopes to have no more than 550 miles left after the first day of driving. If he averages 60 miles per hour, the inequality below can be solved for h, the number of hours he must drive the first day: 1,000−60h≤550
how many hours must he drive the first day?
What is He must drive at least 7.5 hours the first day? or what is 7.5 hours?
A vehicle is running at a constant speed on a highway. Ignore the initial acceleration at the start and final deceleration when the vehicle runs out of gasoline and comes to halt. Its gas consumption per mile is also constant. The amount of gasoline, in gallons, in the vehicle can be modeled as a linear function G(t)=10−2t, where t is time, in hour
What is the initial amount of gas in the tank?
What is 10 gallons?
The average number of cookies in a box is 22. The number of cookies in a box can vary by 2. Which equation can be used to find the maximum and minimum number of cookies, xx, that could be in a box?
What is the absolute value of |x +22|-2 = 0 ?
Nikki works at a store that sells consumer electronics. She earns $12 per hour, plus a commission of 5% of her total sales amount each day.
Write an equation that can be solved for x, Nikki’s total sales amount in dollars on Saturday?
What is 0.05x +8(12) ≥ 139?
Ray lends $3,500.00 to Aron at a simple interest of 15% per year. Aron returned him $3,000 and a watch after 2 years to clear the account. What is the price of the watch?
Simple interest = (P)(R)(T)
What is $1,550.00