I tried many ways and can't seem to write this as an equation. Thanks Is it 3 and 4 on the x-axis?
V vgamelover123 New member Joined Jun 6, 2020 Messages 16 Jun 18, 2020 #1 I tried many ways and can't seem to write this as an equation. Thanks Is it 3 and 4 on the x-axis? Attachments gra.png 19.7 KB · Views: 6
MarkFL Super Moderator Staff member Joined Nov 24, 2012 Messages 3,021 Jun 18, 2020 #2 I would begin with the fact that the log has been flipped horizontally and shifted 4 units to the right: [MATH]f(x)=\log_b(-a(x-4))[/MATH] And then use: [MATH]f(3)=\log_b(-a(3-4))=\log_b(a)=0[/MATH] [MATH]f(1)=\log_b(-a(1-4))=\log_b(3a)=2[/MATH] What do you get for \(a\) and \(b\)?
I would begin with the fact that the log has been flipped horizontally and shifted 4 units to the right: [MATH]f(x)=\log_b(-a(x-4))[/MATH] And then use: [MATH]f(3)=\log_b(-a(3-4))=\log_b(a)=0[/MATH] [MATH]f(1)=\log_b(-a(1-4))=\log_b(3a)=2[/MATH] What do you get for \(a\) and \(b\)?