(2) For the rule $y = 3 x - 4$ , find the value of $y$ for these $x$ -values.
a $x = 2$
b $x = - 1$

Answer

Expert–verified

Hide Steps

Answer

Final Answer: For $x = 2$ , $y$ is $2$ and for $x = - 1$ , $y$ is $- 7$ .

Steps

Step 1 ：We are given a linear equation $y = 3 x - 4$ and we need to find the value of $y$ for $x = 2$ and $x = - 1$ .

Step 2 ：We can substitute these values of $x$ into the equation to find the corresponding $y$ values.

Step 3 ：For $x = 2$ , substituting into the equation gives $y = 3 * 2 - 4 = 2$ .

Step 4 ：For $x = - 1$ , substituting into the equation gives $y = 3 * (- 1) - 4 = - 7$ .

Step 5 ：Final Answer: For $x = 2$ , $y$ is $2$ and for $x = - 1$ , $y$ is $- 7$ .