Answer:
![\displaystyle a = 6](https://img.qammunity.org/2022/formulas/mathematics/high-school/wbdsedzv1rtaeq1etn04gal933fljga8rd.png)
Explanation:
we are given a absolute value function
![\displaystyle f(x) = a |x|](https://img.qammunity.org/2022/formulas/mathematics/high-school/zuwf3vjrnpyvgknlz8nxk9zwzmw8yplxr4.png)
we want to figure out the value of a
since we are a point which is on the function we can figure out a by using the point i.e (1,6) this point tell us when x is 1 f(x) is 6 thus
substitute:
![\displaystyle 6= a \cdot |1|](https://img.qammunity.org/2022/formulas/mathematics/high-school/jy7siqmxf30hpu05yex8m3pyuwt8r4ykd5.png)
absolute value of any integer is positive therefore,
![\displaystyle 6= a \cdot 1](https://img.qammunity.org/2022/formulas/mathematics/high-school/41toknlegrw8z00hds0xqirxhb9vekmrwy.png)
simplify multiplication:
![\displaystyle 6= a](https://img.qammunity.org/2022/formulas/mathematics/high-school/h1bhz1uindcarkpq5e4yvqd6f4amwbq3kg.png)
hence,
the value of a is
![\underline{\quad 6 \quad}](https://img.qammunity.org/2022/formulas/mathematics/high-school/ooy9vdzv45zo2nnptq91gdhjbk8x1s00fc.png)