Question

FAN & MEDAL!!!

On the graph of the equation 4x + 5y = 20, what is the value of the y-intercept?

-5
-4
4
5

I think its 4or 5
@AaronAndyson

Answer 1

If you have 4x+5y = 20, for example, you can plug in the the value 0 for x and solve for y.

This gives you the value of the for the y intercept:

In your case, you would have 4(0) + 5y = 20
5y = 20
y = 4
y-intercept is (0, 4)

then substitute y = 0 and solve for x:

for 4x+5y = 20
you get 4x + 5(0) = 20
4x = 20
x = 5
x-intercept is (5, 0)

Draw (0.4) and (5, 0) and a line between them. Use a ruler to make it look nice. It is easy when you get the hang of it.

Answer 2

so I got it right I had put 4. but I was thinking 5 also but the answer is 4 right?

Answer 3

@chrissy2430 you there?

Answer 4

hello?

Answer 5

yes sorry my computer is acting up. I have to click on something and click back on my post to see your response and to reply back to you. but im here

Answer 6

@AaronAndyson you there :(

Answer 7

yes four is correct :)

Answer 8

can you check another for me please this one seems weird because I didn't get a negative

Answer 9

but new post :)

Answer 10

What is the equation in point-slope form of the line passing through (0, 2) and (1, 5)?

y-5=3(x-1)
y-2=-3(x-0) ---> mine but ik there isn't a negative in this answer
y+2=3(x+1)
y+5=-3(x+1)

Answer 11

is the slope 3?

Answer 12

yes I got positive 3 but I did a new post for you to see I tagged you in it

Answer 13

To find y intercept with equation in standard form, you simply have to find what value of y when multiplied by its coeefficient equals 20

Answer 14

You do not need to find the slope or change to a different form of linear equation, those ways will give you the same answer but will take longer and introduce more chances for you to make a mistake
@chrissy2430