Question

Graph each of of the following on the cordinate plane a.y=1/2x-5
B.y=-3x+5

Answer 1

I can’t really graph it for you but, I can tell you the coords.

a.

So you can just substitute x for any number, in this case let’s do 1.

y = 1/2(1)-5
y = -4.5

So for your first coordinates you have (1, 4.5)

But let’s say you don’t want decimals, instead of x = 1 we can do x = 4.

y = 1/2(4)-5
y = -3

So our coordinates are (4, -3)

Now let’s substitute x for 2.

y = 1/2(2)-5
y = 4

So our next pair of coordinates are (2, 4)

b.

let’s substitute x for 1 again

y = -3 + 5
y = 2

First pair: (1, 2)

Now let’s substitute x for 2 to make our lives easy

y = -6 + 5
y = -1

Second pair: (2, -1)

Done! Hopefully that helps!