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Graph the equation after rewriting it in slope-intercept form. Y-3x=4

User Mfathirirhas
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1 Answer

18 votes
18 votes

We have this equation


y-3x=4

The following is the slope intercept form


y=mx+b

add 3x on both sides of the equation


y-3x+3x=4+3x

simplify


y=4+3x

rearrange


y=3x+4

So, the above is the equation in slope-intercept form

Now, let's graph the equation

since this is a linear equation, we need to find 2 points and plot them in the chart

let's find point 1. Let's say x = 0 and replace: y = 3x+4 = 3*0 + 4 = 0 + 4 = 4

so, when x=0, then y = 4 , so our 1st point is (0,4)

now, let's suppose, y=0 , in that case, y = 3x + 4 = 0 , then 3x = -4 , so the value of x is -4/3 = -1.3333

in that case, our seconds point is (-4/3 , 0)

just to make sure, we can also plot a 3rd point, let's say we make x = 2, then y = 3*2 + 4 = 6 + 4 = 10

so, our 3rd point is (2, 10)

using the points above, we can plot something like this...

Graph the equation after rewriting it in slope-intercept form. Y-3x=4-example-1
User Haidee
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2.8k points