Question

Identify the slope and y-intercept of the function y = –2x + 1.A.The slope is 1. The y-intercept is (0, –2).B.The slope is –2. The y-intercept is (0, 1).C.The slope is 2. The y-intercept is (0, 1).D.The slope is 1. The y-intercept is (0, 2)

Answer 1

Solution

Given the function below

$y=-2x+1$

The slope-intercept form of an equation of a straight line is

$\begin{gathered} y=mx+b \\ \text{Where m is the slope and b is the y-intercept} \end{gathered}$

Relating both equations,

$\begin{gathered} m=-2 \\ b=1 \end{gathered}$

The y-intercept, b, is at x = 0, and b = 1

The slope is -2. The y-intercept is (0, 1)

Hence, the answer is option B