Question

hw15 - review slope intercept
due: october 9 at 9:00 am
grade: 60%
write expression from context (mx + b)
graph line from slope/y - intercept
graphing lines from equations
scientific calculator
graphing calculator
back to home
graph the following features:

• slope = 3
• y - intercept = 4

Explanation:

Step1: Recall slope - intercept form

The slope - intercept form of a line is $y = mx + b$, where $m$ is the slope and $b$ is the y - intercept. Given $m = 3$ and $b = 4$, the equation of the line is $y=3x + 4$.

Step2: Find two points on the line

When $x = 0$, $y=3\times0 + 4=4$. So one point is $(0,4)$. When $x = 1$, $y=3\times1+4 = 7$. So another point is $(1,7)$.

Step3: Graph the line

Plot the points $(0,4)$ and $(1,7)$ on the coordinate plane and draw a straight line passing through them.

Answer:

Graph the line by plotting the points $(0,4)$ and $(1,7)$ and drawing a straight - line through them.