Writing Linear Equations
Formulas
Word Problems
Converting
Graphs
100
Slope = 6
y-int = -3
Write a linear equation.
y=6x-3
100
What is the slope-formula?
y2-y1/x2-x1
100
If you buy a car wash at the gas station for $5.00, the cost per gallon is $3.10. If you have $40, find the number of gallons of gas you can afford.
11.3 gallons
100
Convert to slope-intercept form
6x - 2y = 72
y = 3x - 36
100
What is the slope of y = 1
0
200
slope=1/2
point= (4, -5)
Write a linear equation in point-slope form.
y+5=1/2(x-4)
200
What is slope-intercept form?
y=mx+b
200
Solid color gift wrap sells for $4 per roll and printed gift wrap sells for $6 per roll. The band needs to earn $2,340 for an upcoming competition. If the band sells 340 rolls of printed paper, find the number of solid paper they must sell.
75 rolls
200
Convert to slope-intercept form:
y - 12 = 1/3(x+60)
y = 1/3x+32
200
What is the slope of x = 0?
Undefined
300
point: (0, 7)
point: (-4, 9)
Write a linear equation in slope-intercept form.
y=-1/2x+7
300
What is standard form?
Ax+By=C
300
Customers of a satellite dish company must pay for installation of the dish, and a monthly fee for service. After 6 months, Jack had paid $594. After 11 months, he had paid $989. Write and solve a linear equation to find the cost for installation.
$120
300
Convert to slope-intercept form:
5x - 3y = 8
y = 5/3x - 8/3
300
Write a linear equation for this graph.
y = 3x - 2
400
point: (3.5, -11)
point: (4, -34)
Write a linear equation in slope-intercept form.
y=-46x+150
400
What is point-slope form?
y-y1=m(x-x1)
400
Jeff is keeping track of his weight over several weeks. After 2 weeks, he weighs 194 pounds. After 6 weeks, he weighs 186 pounds. Find Jeff's weight after 12 weeks.
174 pounds
400
Convert to slope-intercept form:
y-6=-2/5(x+3)
y = -2/5x + 4 4/5
400
Write a linear equation for this graph.
y = 2/5x
500
A graph has an x-intercept at (4, 0) and a y-intercept at (0, -2). Write a linear equation in Standard Form that would have these intercepts.
Answers may vary. Possible answer: 8x-16y=32
500
Arithmetic Sequence formula?
an=d(n-1)+a1
500
You are buying $48 worth of two types of lawn seed. NORMAL lawn seed sells for $0.70 per pound and SUPER lawn seed sells for $1.15 per pound. If you bought 25 pounds of SUPER laws seed, find the amount of NORMAL lawn seed purchased.
$27.50
500
Convert to Standard Form
y=-3/4x+1/3
9x+12y=4
500
Write a linear equation for the graph:
y = -1/3x + 1