Answer:
a) y = 3x-1
b) y = 4x + 2
Step-by-step explanation:
The equation is y = 2x-1
the equation of a straight line is;
y = mx + b
where m is slope (2) and b is the y-intercept (-1)
Slope increasing by 50%
= 2 + 50% of 2
= 2 + 1 = 3
So the new equation will be;
y = 3x - 1
b) Shifted three units
y = 2x - 1 + 3
y = 2x + 2
Slope doubled will be;
y = 2(2)x + 2
y = 4x + 2
