Y= 2x-4 is the slop-intercept form your'e looking for there isn't a lot of work include because you; re just plugging what you have in the equation y=bx+m

y = mx+b  where m is the slope and b is the y intercept

y = 2x-4  

the slope is 2

the y intercept is -4

Explanation:

Slope-intercept form: →

m: represents the slope and is constant.

b: represents the y-intercept.

The y-intercept is the point on a graph at which the graph crosses the y-axis.

You had to used rise/run.

But the slope is 2

But the y-intercept is -4.

Hope this helps!

Thanks!

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

step-by-step explanation: