Respuesta :

A)-10

Explanation

Step 1

given the linear function

[tex]y=2x+5[/tex]

where x is the independent variable and y is the dependent variable , it means x is the input and y is the output

so

Step 1

to find the input we need to replace the given output in the expression and solve for x

hence, replace and solve for x

let

y=-15

[tex]\begin{gathered} y=2x+5 \\ replace \\ -15=2x+5 \\ subtract\text{ 5 in both sides} \\ -15-5=2x+5-5 \\ -20=2x \\ divide\text{ both sides by 2} \\ -\frac{20}{2}=\frac{2x}{2} \\ -10=x \end{gathered}[/tex]

therefore, the answer is

A)-10

I hope this helps you

Otras preguntas