Question

If a line crosses the y-axis at (0,1) and has a slope of 4/5, what is the equation of the line?
A) 4y-5x=5
B) y-4x=5
C) 5y+4x=5
D) 5y-4x=5

Thank you. Xoxoxo<3

Answer 1

d

Answer 2

Rearrange y=mx+b
$$
y=(4/5)x+1
$$
Where 1 is the y-intercept, b, which we were given: (0,1) and (4/5) is m, the slope.

$$
y=\cfrac{4x}{5}+1\\
y-\cfrac{4x}{5}=1\\
5y-4x=5
$$

Does this make sense?

Answer 3

y = mx + b
is the general form of the slope-intercept equation
m = slope and b = intercept on y-axis

s here m = 4/5 and b = 1

y = (4/5)x + 1

Answer 4

Thank you!! I wish I was good at math ! :(

Answer 5

multiply through by 5
and rearrange to get the correct option