Please help! I need help finding the student's errors.
f(x)={x+3, x is less than of equal to -2}
{x^2-1, -2 is less than x is less than 1}
{log base 2 (-x+3), 1 is less than or equal to x is less than 3}

answer:

Their first line is wrong and and x+3 is not -2

Step-by-step explanation:

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

step-by-step explanation:

the true ones are a b and d