Paul is 12 years old. If he is four times as old as his brother that means his brother is 3. Paul will be 18 in six years time, meaning his brother will be 9 in six years time.
Answer:
You can use the factoring process
Step-by-step explanation:
To solve a quadratic equation by factoring,
Put all terms on one side of the equal sign, leaving zero on the other side.
Factor.
Set each factor equal to zero.
Solve each of these equations.
Check by inserting your answer in the original equation.
Example 1
Solve x 2 – 6 x = 16.
Following the steps,
x 2 – 6 x = 16 becomes x 2 – 6 x – 16 = 0
Factor.
( x – 8)( x + 2) = 0
Go left one and up 2 but make sure your line is on the positive 5 on the y axis
Answer:
bottom left graph
Step-by-step explanation:
A proportional relationship is linear, represented by a straight line graph passing through the origin.
The graph on the bottom left is straight line passing through the origin.