By this function definition, by this function definition if I'm inputting an orange circle, I should output an orange circle eight times the orange circle, eight times the orange circle which doesn't make a lot of sense but hopefully you get the idea that whatever you're inputting you're just going to multiply it times eight and add two so if we input two "x" plus three we're going to output this times eight plus two wherever we see an "x" we replace it with this right over here.