Solving for X
Solve: 2x + 5= 15
x= 5
In y=mx+b, what does m represent?
The slope
What is the slope intercept form equation?
y=mx+b
Solve 2x + 3=7
x=2
A line passes through (0,2) with slope 3. What is the equation?
y= 3x+2
Solve: 3x - 7= 11
x= 6
Find the slope: points (2, 3) and (5, 9)
2
Identify m and b in y=mx+b
m= slope and b= y-intercept
Solve 4x - 5= 11
x=4
The cost of renting a bike is $10 plus $3 per hour. Write the equation.
y= 3x+10
Solve: 5x + 2 = 2x + 11
x= 3
What is the slope of a horizontal line?
0
Convert 2x + 3y=6 to slope intercept form
y = - 2/3x +2
Solve 2x + 5= 3x-7
x=5
You start with $50 and save $5 per week.What is the equation for total money y after x weeks?
y= 5x + 50
4(2x-3)=12
x= 3
What is the slope of a vertical line?
Undefined
What is the standard form of a linear equation?
Ax+By=C
Solve 2x + 5= 3x - 7
x=12
A phone plan costs $67 a month plus $0.5 per text. Write the equation.
y=0.5x+67
Solve: 2(x+4)-3= 5x - 8
x=3
Line passes through (0,2) and (4,6). What is the slope?
1
Convert y=5x-10 to standard form.
-5x + y= -10 or 5x - y=110
Solve 5x - 2(3x+4) = 6
x=7
A train travels 60 miles in 1 hour and 150 miles in 2.5 hours. Find the slope (rate).
60 mph