Which equation does not belong with the other three?
y= -5x - 1
2x – y=8
y=x+4
y=-3x + 13
explain your reasoning. which one is correct

a. the slope of this equation is negative.
b. the y-intercept of this equation is negative.
c. the equation is in standard form.
d. the slope of this equation is positive.

2x - y = 8

Step-by-step explanation:

2x - y = 8 does not belong with the other equations because C. the equation is in standard form

you can not drow on this

step-by-step explanation:

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.