Question

use the graph to estimate the value for b. use 3 significant figures and units. when x = 0 m³,y = 1 kg. write the equation for the line using the slope from problem #2 and y - intercept. use units. y = 2x+3

Explanation:

Step1: Identify the y - intercept

The y - intercept is the value of y when x = 0. From the text, when x = 0 m³, y = 1 kg. So the y - intercept (b) is 1 kg.

Step2: Determine the 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 the form y = 2x+3, we assume the slope m = 2 (units not given in the problem for slope) and the y - intercept b = 3 (units not given in the problem for y - intercept). But from the graph reading when x = 0, y = 1 kg.

Answer:

The y - intercept value for b is 1 kg.