Solving Equations
−3x+2=23
x= -7
How many solutions does this equation have?
6t = 5 + 6t
No Solution
Slope is the rate of change, rise over run of a line.
-6+7
1
−5(−3n+1)=−50
n= -5
How many solutions does this equation have?
9 − 7z = –7z + 9
Infinite Solutions
Find the slope of the line
y=1/2x+4
Slope= 1/2
What letter in this equation represents the y-intercept?
y=mx+b
b= y-intercept
-3+7
4
x + 3 = -11
x= -14
How many solutions does this equation have?
–t − 10 = 10 + 9t
One Solution
Find the slope of the line that passes through (7, 2) and (1, 1).
Slope= 1/6
What is the y-intercept of this line?
Y= 7/5x-8
-8 or (0,-8)
Evaluate 5+(-4) + (-7) +2.
-4
−2(6x−3)+4=−50
x= 5
How many solutions does this equation have?
–4 − 9q = –9q − 4
Infinite Solutions
What is the slope of the line through (2,-2)(9,3)?
Slope= 5/7
Find the y-intercept of the line.
y=13x+11
Y-intercept (b)= (0,11) or 11
Evaluate (-8)x(-8).
+16
3(x−1)−2(x+3)=0
x=9
How many solutions does this equation have?
7 + 2u = 2u + 7
Infinite Equations
What is the slope of the line through (6,9) and (7,1)?
Slope= -8
Find the y-intercept of the line.
y=15/2x–13/10
B= -13/10 or -1 3/10 or (0, -13/10)
Evaluate (-11)(-11) + 5.
115