Which of the following equations best represents the line segment pq?

a. y = −3x + 2
b. y = −2x + 1
c. y = −3x − 2
d. y = −2x − 1

i think it's either b or d, because i know the y-intercept is 1.

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

What is the circumference of a circle with an area of 50.24 cm²?