Y=mx+b b is the y intercept which is 4
m is the slope which is rise over run which is -4/2 which is -2
Linear y=-2x+4
Answer:You will need to identify first
Step-by-step explanation:
Answer:<em>215</em>
Step-by-step explanation:<em>You have to add to get your answer.</em>
<em>12+12=24</em>
<em>24+112=136</em>
<em>136+7=143</em>
<em>143+4=147</em>
<em>147+68=215</em>
<em>Your answer is:215</em>
Let x be height of the shadow
30/15 = 90/x
Do cross multiplication
30x =1350
x = 45
Let h= height of the screen
1/4 of 45 is 11.25
H = 11.25 + 45
H= 56.25
There's your answer. I hope I did it right.
