Question

function a
$y = x + 4$
function b
which statement is true?
the y-value of function a when $x = -1$ is greater than the y-value of function b when $x = -1$.
the y-value of function a when $x = -1$ is less than the y-value of function b when $x = -1$.

Explanation:

Step1: Find y of Function A at x=-1

Substitute $x=-1$ into $y=x+4$:
$y = -1 + 4 = 3$

Step2: Find y of Function B at x=-1

Locate $x=-1$ on the graph, the corresponding $y$-value is 1.

Step3: Compare the two y-values

$3 > 1$, so Function A's y-value is greater.

Answer:

The y-value of Function A when $x = -1$ is greater than the y-value of Function B when $x = -1$.