Solving systems of equations graphically Quiz

1. Find the point where $y=x+1$ and $y=3x-5$ meet.

• A. $(4, 3)$
• B. $(3, 4)$
• C. $(2, 3)$
• D. $(1, 2)$

2. How many solutions do $y=2x+1$ and $y=2x+5$ have?

• A. None
• B. One
• C. Two
• D. Infinitely many

3. The graphs of $y=x^2$ and $y=4$ are drawn. Solve $x^2=4$ graphically.

• A. $x=2$ only
• B. $x=4$ and $x=-4$
• C. $x=2$ and $x=-2$
• D. $x=16$

4. To solve $f(x)=g(x)$ with graphing technology, what do you read off?

• A. The $x$-coordinates where the graphs intersect.
• B. The $y$-intercepts of both graphs.
• C. The gradients of both graphs.
• D. The $y$-coordinates only.

5. Find the $x$-coordinate where $y=3x-2$ and $y=x+4$ meet.

• A. $2$
• B. $3$
• C. $1$
• D. $4$