Question

Find f(−3) for f(x) = −2x + 5.
A. -1
B.10
C.-10
D.11

Answer 1

The answer is D. Because if you plug it into the equation-2•-3=6 6+5=11

Answer 2

f(x)=-2x+5

`\\ \sf\longmapsto f(-3)`

`\\ \sf\longmapsto -2(-3)+5`

`\\ \sf\longmapsto 6+5`

`\\ \sf\longmapsto 11`