Write an equation that represents the line
Use exact numbers

y = 3/4x + 2

Step-by-step explanation:

For this problem, you need to use slope-intercept form, which tells you the slope and the y-intercept. The formula is y = mx + b, where m is the slope and b is the y-intercept

The first thing you need to do here is find the slope. To do this, use the equation , with points and .

For this problem, you have points (0, 2) and (4, 5). Using the equation, you get , which simplifies down to . This is your slope. You can plug it into your equation so that you have y = 3/4x + b

Now you need to find the y-intercept. The y-intercept is the coordinate in which the x-value is zero. In some problems, the y-intercept is given to you, which is really easy since you just need to put the y-value into the equation. In a lot of problems, though, the y-intercept is not given. In that case, pick a point on the line and plug the x-coordinate into the equation for x and the y-coordinate for y and solve.

In this problem, you are given the y-intercept, 2, since that is the point where x = 0. Input that into your equation, which gives you y = 3/4x + 2.

6.20÷4 = 1.55
price per individual dounut =$1.55

1.55×12=18.6

12 donuts =$18.6