Question

What is the slope-intercept equation for the line below?

Answer 1

y = mx + c

1) find the gradient, m

`m = (4 - 2)/(5 - 0)`

`m = (2)/(5)`

2) find value of y-intercept, c

from the graph, c = 2

2) use the formula y=mx+c

y = mx + c

y = 2/5x + 2

the answer is A

Answer 2

y = 2/5x+2

Explanation:

First find the slope

m = (y2-y1)/(x2-x1)

= (4-2)/(5-0)

=2/5

The y intercept is 2

The slope intercept form is y = mx+b

where m is the slope and b is the y intercept

y = 2/5x+2