Question

9 fill in the blank 1 point
find the value of y when x is 4.

10 fill in the blank 1 point
find the value of y when x is 1.

Explanation:

Step1: Find line equation for Q9

First, identify two points on the line: $(0, 3)$ and $(1, 1)$. Calculate slope: $m=\frac{1-3}{1-0}=-2$. The y-intercept $b=3$, so equation is $y=-2x+3$.

Step2: Calculate y for Q9 (x=4)

Substitute $x=4$ into the equation.
$y=-2(4)+3=-8+3=-5$

Step3: Find line equation for Q10

Identify two points on the line: $(0, -3)$ and $(1, 0)$. Calculate slope: $m=\frac{0-(-3)}{1-0}=3$. The y-intercept $b=-3$, so equation is $y=3x-3$.

Step4: Calculate y for Q10 (x=1)

Substitute $x=1$ into the equation.
$y=3(1)-3=3-3=0$

Answer:

For question 9: $-5$
For question 10: $0$