Answer:
B.) y= 5/4x - 4
Step-by-step explanation:
Slope intercept form
y = 1.25x +-4
Equation of a straight line:
y = mx + b ------(i)
Step by Step Solution:
Step 1: Calculating Slope (m).
m = y2-y1x2-x1
m = -4-10-4
m = -5-4
m = 1.25
Now putting value of m in equation (i)
y = 1.25x + b -----(ii)
Step 2: Calculating Y-intercept (b).
Lets choose the first point, (4,1) for calculating y-intercept:
y = mx + b
1 = 1.25(4) + b
1 = 5 + b
-4 = b
b = -4
Now putting value of b in equation (ii)
y = 1.25x + -4
