Question

a car wash. the table shows the total cost, y, as a
number of gallons, x total cost ($), y
0 10
3 22
6 34
does (3, 22) make the equation true or false?
y = 4x + 10
22 = 4(3) + 10 ?

Explanation:

Step1: Calculate the right - hand side of the equation

Substitute $x = 3$ into $4x+10$.
$4\times3 + 10=12 + 10$

Step2: Simplify the result

$12+10 = 22$

Step3: Compare with the left - hand side

The left - hand side is $y = 22$. Since the left - hand side ($22$) is equal to the right - hand side ($22$), the equation holds.

Answer:

True