I have to find the slope and the y-intercept of 3x+7=0

enmobladatn

enmobladatn

Answered question

2022-07-31

I have to find the slope and the y-intercept of 3x+7=0

Answer & Explanation

Danica Ray

Danica Ray

Beginner2022-08-01Added 15 answers

For this question, let's isolate for x alone by subtracting 7 fromboth sides of the equation to get:
3x = -7
Now, divide both sides by 3 to isolate for the variable x alone toget:
x = 7 3
At this point, we have an equation, however, notice that y simplydoes not appear here. In fact, it never appeared in the original questionwhich means that y takes upon all values of this value of x.
Now, equations where x = a number, have graphs where we have avertical line at the x value going straight up and straight down[since it doesn't matter which y-value we hit].
Therefore, there is no y-interceptand no slope for this particular equation!
Deborah Wyatt

Deborah Wyatt

Beginner2022-08-02Added 4 answers

3x+7=0
3x+7=y
slope: because of 3x->
slope equal 3
y-int, let x=0
3(0)+7=y
y=7
y-intercept=7

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