Question

What is the equation of d in slope-intercept form?

A coordinate grid with 6 lines graphed. Line a passes through negative 3 comma 0 and negative 1 comma 5. Line b passes through negative 2 comma 0 and negative 1 comma 3.5. Line c passes through 0 comma negative 5 and 2 comma 0. Line d passes through 5 comma negative 4 and negative 5 comma negative 1. Line e passes through negative 5 comma negative 2 and 0 comma negative 1. Line f passes through 5 comma 1 and 0 comma 2.
A. y = 0.2x
B. y = 0.3x + 0.5
C. y = –0.2x – 2
D. y = –0.3x – 2.5

Answer 1

Answer:

Explanation:

Equation from 2 points using Slope Intercept Form

Calculate the slope from 2 points.

Substitute either point into the equation. You can use either (3,7) or (5,11)

Solve for b, which is the y-intercept of the line.

Substitute b, -1, into the equation from step 2.