Pwhndaz111
Answered

Graph the ordered pairs for y = 4x + 2 using x=[-2,1,2]

I don't remember how to do this properly, can someone walk me through it please?

I'm thinking that I need to take (-2,1,2) and plug them into the equation, but what do I do from there?

Verified Answer :

MissPhiladelphia

to plot the eqution you should solve the values of
y with each corresponding values of x.

at x = 1

y = 4x + 2

y = 4(1) + 2 = 6

at x = -2

y = 4(-2) + 2

y = -6

at x = 2

y = 4(2) + 2

y = 10

kudzordzifrancis

ANSWER

See graph

EXPLANATION

First you need to substitute each x-value in to the function and calculate for the y-values as follows,

When
\(x = - 2\)

\(y = 4( - 2) + 2\)

\(y = - 8 + 2 = - 6\)

This gives us the ordered pairs,

\((-2,-6)\)

When
\(x = 1\)

\(y = 4(1) + 2\)

\(y = 4 + 2 = 6\)
We again have the ordered pair,

\((1,6)\)

When
\(x = 2\)

\(y = 4(2) + 2\)

\(y = 8 + 2 = 10\)

This also gives the ordered pair,

\(
(2,10)\)

We now plot all the ordered pairs and draw a straight line through the graph as shown in the attachment.

View image kudzordzifrancis

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