The problem asks to find the slope and $y$-intercept of the line shown in the graph and then write the equation of the line.

AlgebraLinear EquationsSlopeY-interceptGraphing
2025/3/6

1. Problem Description

The problem asks to find the slope and yy-intercept of the line shown in the graph and then write the equation of the line.

2. Solution Steps

First, we need to identify two points on the line. From the graph, we can identify the points (0,1)(0,1) and (1,5)(1,5).
Let (x1,y1)=(0,1)(x_1, y_1) = (0, 1) and (x2,y2)=(1,5)(x_2, y_2) = (1, 5).
The formula for the slope mm is:
m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}
Plugging in the values, we get:
m=5110=41=4m = \frac{5 - 1}{1 - 0} = \frac{4}{1} = 4
The slope of the line is 44.
The yy-intercept is the point where the line intersects the yy-axis. From the graph, we can see that the yy-intercept is at y=1y = 1. So, the yy-intercept bb is 11.
The equation of a line in slope-intercept form is:
y=mx+by = mx + b
Substituting m=4m = 4 and b=1b = 1, we get:
y=4x+1y = 4x + 1

3. Final Answer

Slope = 44