Question

Cannnn u helpp me ill be choosing brainliest

Answer 1

$1) y=-5^{-x}, y = x+5 , \\ \\ -5^{-x}=x+5 \\ \\ ln(-5^{-x})=ln(x+5) \\ \\ ln(- \frac{1}{5^{x}} )=ln(x+5), you cannot find ln of negative number, so it is going to be "0" solutions.$

The graphs of these equations will not intersect. 

$2) y = 4(1.2)^{x}, y = x+7 \\ \\ x+7= 4(1.2)^{x} graphs have 2 intersects, so two solutions.$

3) $y= {0.5}^{x} , y =6, \ 6=0.5^{x} One intercept. so one solution$