Questions: y=1/2 x-1 y=1/2 x+5
How many solutions does the system of equations have?
no solution
one solution
infinitely many solutions
Transcript text: \[
y=\frac{1}{2} x-1 \quad y=\frac{1}{2} x+5
\]
How many solutions does the system of equations have?
no solution
one solution
infinitely many solutions
Solution
Solution Steps
Step 1: Identify the equations
The given system of equations is:
\[
y = \frac{1}{2}x - 1 \quad \text{and} \quad y = \frac{1}{2}x + 5
\]
Step 2: Compare the slopes
Both equations are in the slope-intercept form \( y = mx + b \), where \( m \) is the slope. For the first equation, the slope \( m = \frac{1}{2} \), and for the second equation, the slope \( m = \frac{1}{2} \). Since the slopes are equal, the lines are parallel.
Step 3: Compare the y-intercepts
The y-intercept for the first equation is \( b = -1 \), and for the second equation, it is \( b = 5 \). Since the y-intercepts are different, the lines do not intersect.
Step 4: Determine the number of solutions
Since the lines are parallel and do not intersect, the system of equations has no solution.