Question

Annie is helping you graph the line y - 3 = 2(x + 1).

She tells you to follow the steps below.

Step 1: Plot the point (1, -3).
Step 2: Plot more points by moving up 2 and right 1.
Step 3: Draw a line through the points and put arrows on the ends..

Annie made a mistake.

What was her mistake? How should she fix her mistake?

Answer 1

she should’ve used the x intercept instead of using any point

Answer 2

Answer: Annie made a mistake in step 1 by plotting the point (1, -3) instead of (1, 0) which is the x-intercept of the given equation.

Explanation:

She should have used the x-intercept of the equation instead of just any point.

To fix her mistake, Annie should find the x-intercept of the equation by setting y to 0, and solve for x. Then she can plot the point (1,0) and proceed with step 2 and 3.